Finding the Fourth Proportional to 3,929,936.96, 5,410,212 and 3,749,378.24
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Solution
The fourth proportional to 3,929,936.96, 5,410,212 and 3,749,378.24 is: 5,161,642.88
Step by Step Solution
- Step 1: Write the proportion equation
3,929,936.96 : 5,410,212 = 3,749,378.24 : x - Step 2: Convert to fraction form
3,929,936.96/5,410,212 = 3,749,378.24/x - Step 3: Cross multiply
3,929,936.96x = 5,410,212 × 3,749,378.24 - Step 4: Simplify right side
3,929,936.96x = 20,284,931,146,586.88 - Step 5: Solve for x
x = 20,284,931,146,586.88/3,929,936.96 - Step 6: Final answer
x = 5,161,642.88
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.