Finding the Fourth Proportional to 3,960,408.56, 5,465,349.96 and 2,149,572.56
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Solution
The fourth proportional to 3,960,408.56, 5,465,349.96 and 2,149,572.56 is: 2,966,402.61
Step by Step Solution
- Step 1: Write the proportion equation
3,960,408.56 : 5,465,349.96 = 2,149,572.56 : x - Step 2: Convert to fraction form
3,960,408.56/5,465,349.96 = 2,149,572.56/x - Step 3: Cross multiply
3,960,408.56x = 5,465,349.96 × 2,149,572.56 - Step 4: Simplify right side
3,960,408.56x = 11,748,166,304,813.10 - Step 5: Solve for x
x = 11,748,166,304,813.10/3,960,408.56 - Step 6: Final answer
x = 2,966,402.61
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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.