Solving Proportions Word Problems

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal.

Front

How do you solve a proportion?

Back

To solve a proportion, cross-multiply the terms and then solve for the unknown variable.

Front

What is the unit rate?

Back

The unit rate is a comparison of two different quantities when they are combined together. It is often expressed as a quantity per one unit.

Front

If a bird flies 35 meters in 10 seconds, what is its speed in meters per second?

Back

The speed is 3.5 meters per second.

Front

How do you find the cost per item?

Back

To find the cost per item, divide the total cost by the number of items.

Front

If 6 pencils cost $0.36, how much does 1 pencil cost?

Back

1 pencil costs $0.06.

Front

What is the formula to find the missing value in a proportion?

Back

Front

How do you set up a proportion for similar figures?

Back

Set up a proportion by comparing the corresponding sides of the figures.

Front

If 14 sticks of pepperoni are needed for 28 pizzas, how many sticks are needed for 1 pizza?

Back

1 stick of pepperoni is needed for 2 pizzas.

Front

What is the scale factor?

Back

The scale factor is the ratio of the lengths of two corresponding sides of two similar figures.