Answer:
3/2
Explanation:
A proportional relationship is described by ...
y = kx
The value of k can be found by dividing by x:
k = y/x
For the given non-zero point (1/4, 3/8), the value of k is found to be ...
k = (3/8)/(1/4) = (3/8)/(2/8)
k = 3/2
The constant of proportionality is 3/2.