Finding the Fourth Proportional to 3,891,755.62, 5,837,633.12 and 1,972,367.87
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Solution
The fourth proportional to 3,891,755.62, 5,837,633.12 and 1,972,367.87 is: 2,958,551.65
Step by Step Solution
- Step 1: Write the proportion equation
3,891,755.62 : 5,837,633.12 = 1,972,367.87 : x - Step 2: Convert to fraction form
3,891,755.62/5,837,633.12 = 1,972,367.87/x - Step 3: Cross multiply
3,891,755.62x = 5,837,633.12 × 1,972,367.87 - Step 4: Simplify right side
3,891,755.62x = 11,513,960,005,768.01 - Step 5: Solve for x
x = 11,513,960,005,768.01/3,891,755.62 - Step 6: Final answer
x = 2,958,551.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.