Ratio and Proportion

The following are different ways to write ratio, EXCEPT

• dash form

• word form

• colon form

• fraction form

What is the ratio to the picture shown, triangles to squares?

• 2:6

• 5:6

• 3:4

• 4:3

What is the ratio of vowels to consonants in the word RATIO?

• 2:3

• 3:2

• 2:5

• 3:5

Is this a true proportion?

• Yes

• No

An urn has four different colored balls. The ratio of blue balls to red balls is 3 : 7 and the ratio of green balls to yellow balls is 9 : 21. Are the ratios of blue balls to red balls and green balls to yellow balls equivalent?

• Yes, because the product of the means and extremes are both equal to 63.

• No, because the products are different.

What is the missing number?

• 1

• 3

• 9

• 8

Solve the proportion.

• k=5

• k=3.3333333

• k=60

• k=90

The ratio of green counters to blue counters is 4 : 5

What fraction of the counters are blue?

• ⁵/₄

• ⁴/₅

• ⁴/₉

• ⁵/₉

In a fruit bowl ³/₅ of the fruit are apples. The rest are oranges.

What is the ratio of apples to oranges?

• 3 : 5

• 5 : 3

• 3 : 2

• 3 : 8

What ratio is equivalent to 3:5

• 30 : 500

• 9 : 15

• 13 : 1 5

• 1 : 2