Question

X:1pe3=3pe4:1pe2 DauCOROANA

Answer 1

x÷$\frac{1}{3}$=[tex] \frac{3}{4} [/tex]÷$\frac{1}{2}$

x×$\frac{1}{2}$=$\frac{3}{4}$×$\frac{1}{3}$

$\frac{1}{2} x= \frac{1}{4}$

x=$\frac{1}{2}$

Answer 2

x : 1/3 = 3/4 : 1/2
x * 3/1 = 3/4 * 2/1
     3x  =  6/4
       x  =  6/4 ; 3 = 3/2 * 1/3 = 3/6 = 1/2