what's the constant of proportionality
2 1/2
3 3/4
4 1
5 1 1/4
The constant of proportionality would be the fraction of the form x/y for each pair of numbers given.
For 2 1/2, the constant of proportionality would be 2/2.5 or 4/5.
For 3 3/4, the constant of proportionality would be 3/3.75 or 4/5.
For 4 1, the constant of proportionality would be 4/1 or 4.
For 5 1 1/4, the constant of proportionality would be 5/1.25 or 20/5.