Ratios and Proportions Extended Ratios

Which of these ratios is equivalent to 3:4?

• 12:9

• 9:20

• 9:12

• 803:804

A bag of marbles comes with 3 blue marbles, 2 red marbles, and 5 yellow marbles. What is the ratio of red to yellow?

• 2 to 5

• 5 to 3

• 3 to 5

• 5 to 2

Write the ratio of the first measurement to the second measurement.

Length of a classroom:  18 ft 4 in
Length of a closet:  48 in                  

• 55/12

• 12/55

• 9/2

• 2/9

Write the ratio of the first measurement to the second measurement.
Length of the school bus: 9 yd
Length of an SUV: 12 ft              

• 9/4

• 4/9

• 3/4

• 4/3

A class has 30 students. 18 are boys. What is the ratio of boys to girls?

• 12:18

• 3:2

• 30:18

• 18:7

Solve for x
20/5 = x/25

• x=100

• x=4

• x=120

• x=5

Solve for x

• x=1

• x=3

• x=3/5

• x=2

Solve for x

• x=6.5

• x=8

• x=4

• x=5.5

The ratio of cars to trucks in the parking lot is 3:5.  If there are 360 vehicles in the parking lot, how may are trucks?

• x = 270 cars

• x = 225 cars

• x = 225 trucks

• x = 270 trucks

Solve the proportion:

• 4

• 8

• 14

• 10