Finding the Fourth Proportional to 3,876,074.13, 5,348,982.37 and 2,157,600.61
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Solution
The fourth proportional to 3,876,074.13, 5,348,982.37 and 2,157,600.61 is: 2,977,488.88
Step by Step Solution
- Step 1: Write the proportion equation
3,876,074.13 : 5,348,982.37 = 2,157,600.61 : x - Step 2: Convert to fraction form
3,876,074.13/5,348,982.37 = 2,157,600.61/x - Step 3: Cross multiply
3,876,074.13x = 5,348,982.37 × 2,157,600.61 - Step 4: Simplify right side
3,876,074.13x = 11,540,967,624,391.25 - Step 5: Solve for x
x = 11,540,967,624,391.25/3,876,074.13 - Step 6: Final answer
x = 2,977,488.88
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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.