Chapter 5 Ratio and Proportions

Solve the proportion:

• 4

• 8

• 14

• 10

Do the ratios form a proportion?

• Yes, they form a proportion.

• No, they do not form a proportion.

The pair of figures is similar. Find the missing side.

• x = 12

• x = 3

• x = 40

• x = 4

A comparison of two quantities using divison

• rate

• ratio

• proportion

For finding out ratio of two quantities, both should be expressed in the _​ (a)   Unit

• Same

• Different

• Equal

Write how to find the proportion of

2:8 :: 25:625

(Do not give space first right the means than the extremes.)

Mathematical Equivalence

ON

Enter the missing numbers to create equivalent ratios. 
1 : 3
6 : 18
2 : _
4 : _

• 4 & 8

• 4 & 12

• 6 & 12

• 6 & 8

A cake recipe calls for 1.5 cups of milk and 3 cups of flour. Seth made a mistake and used 5 cups of flour. How many cups of milk should he use to keep the proportions correct?

• 2.5 cups milk

• 1.75 cups milk

• 2 cups flour

• 2.25 cups milk

Which is a good example of two ratios that are proportional? 

• 1/3 = 4/7

• 1/2 = 2/4

• 15/1 = 30/5

• 20/10 = 35/5

How many pieces are there per ounce?

• 5 pieces

• 0.2 pieces

• 50 pieces

• 60 pieces