Ratio and Proportion Similar

Which of these ratios is equivalent to 3:4?

• 12:9

• 9:20

• 9:12

• 803:804

Solve for x

• x=6.5

• x=8

• x=4

• x=5.5

Eric is building a scale model of a helicopter at 1/72. If the height of the model is 2 (2/3), what is the actual height of the helicopter?

• 16 feet

• 27 feet

• 48 feet

• 192 feet

A tree is 12 feet tall and casts a shadow 9 feet long. A building nearby casts a shadow that measures 24 feet. How tall is the building? (Draw a picture, set up a proportion)

• 24 feet

• 21 feet

• 27 feet

• 32 feet

The point (8, 12) was dilated to become point (2, 3). What was the scale factor?

• ½

• ¼

• 4

• 2

What is the ratio of red apples to green apples

• 7 apples to 3 green

• 4 red apples to 7 apples

• 4 red apples to 3 green apples

• 3 green apples to 4 red apples

In the fruit bowl there are 4 apples, 2 bananas, and 5 pears.  What is the ratio of pears to ALL fruit?

• 5:4

• 5:11

• 2:5

• 6:5

• 1
• 3
• 9
• 8

Solve the proportion.

• k=5

• k=3.3333333

• k=60

• k=90

Solve for x 

• x = 1/10

• x = 10

• x = 4

• x = 5