Final answer:
To solve the given proportion x+3/4= x+1/2 using cross multiplication, cross multiply the fractions and solve for x.
Step-by-step explanation:
To solve the proportion x+3/4= x+1/2 using cross multiplication, first, cross multiply the fractions:
(x+3) * 2 = (x+1) * 4
Next, simplify and solve for x:
2x + 6 = 4x + 4
6 - 4 = 4x - 2x
2 = 2x
x = 1