Proportion Word Problems Lesson

​Proportion Word Problems

​Buying Rates are almost always proportional!
Set up a proportion, like this:

​The problem tells us 1 can costs $2.
This gives us our 1st fraction:

​Proportion Word Problems

​The problem also tells us that we want to
buy $10 worth:

​The last spot is our unknown. Since it represents cans of pineapple
we will use "p":

​Proportion Word Problems

​Now we solve by using Cross Multiplication
1. Multiply diagonally and place the products equal to each other.
2. Divide by the coefficient of the variable.

​Proportion Word Problems

​Now we solve by using Cross Multiplication
1. Multiply diagonally and place the products equal to each other.
2. Divide by the coefficient of the variable.
3. State the answer in a sentence.

You can buy 5 cans of pineapple chunks for $10.

Math Response

If you can buy one can of pineapple chunks for $2, then how many can you buy with $10?

Type answer here

Correct Answer: 5

Deg^°

Rad

​Proportion Word Problems

​Buying Rates are almost always proportional!
Set up a proportion, like this:

​Proportion Word Problems

​Scaled images are always proportional!
Set up a proportion, like this:

Multiple Choice

If you can buy three bulbs of elephant garlic for $8 then how many can you buy with $32?

• 12
• 20
• 8
• 16

​Proportion Word Problems

Buying Rates are almost always proportional!
Set up a proportion, like this:

​Proportion Word Problems

Buying Rates are almost always proportional!
Set up a proportion, like this:

Multiple Choice

If you can buy one fruit basket for $30, then how many can you buy with $60?

• 4
• 2
• 3
• 1

​Proportion Word Problems

Money Exchanges are always proportional!
Set up a proportion, like this:

​Proportion Word Problems

​Proportion Word Problems

Money Exchanges are always proportional!
Set up a proportion, like this:

​Proportion Word Problems

Money Exchanges are always proportional!
Set up a proportion, like this:

Multiple Choice

The currency in Argentina is the Peso. The exchange rate is approximately $3 = 1 Peso. At this rate, how many Pesos would you get if you exchanged $121.10?

• 50.12 Pesos
• 25.75 Pesos
• 40.37 Pesos
• 30.25 Pesos

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