Solving for x Proportion

Find x such that: a) 2:5 = 8:x; b) x:28 = 4:7.

Final Answer:

x1 =  20
x2 =  16

Step-by-step explanation:

2 : 5 = 8 : x1 5:2 = x1:8 5/2 = x1/8 x1=8 25=28 5=240=20
x2 : 28 = 4 : 7 x2=28 74=728 4=7112=16



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