Solving Proportion Problems
Question 1:
y is directly proportional to the cube of x.
When x = 4, y = 128, find y when
x = 12.
3456
Question 2:
y is directly proportional to the cube of x.
When x = 3, y = 108, find y when
x = 1.
4
Question 3:
y is inversely proportional to the square root of x.
When x = 100, y = 4, find y when
x = 1.
40
Question 4:
y is inversely proportional to the cube of x.
When x = 4, y = 250, find y when
x = 5.
128
