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Finding the Fourth Proportional to 6,342.85, 8,755.17 and 4,454.89

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Solution

The fourth proportional to 6,342.85, 8,755.17 and 4,454.89 is: 6,149.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,342.85 : 8,755.17 = 4,454.89 : x
  2. Step 2: Convert to fraction form
    6,342.85/8,755.17 = 4,454.89/x
  3. Step 3: Cross multiply
    6,342.85x = 8,755.17 × 4,454.89
  4. Step 4: Simplify right side
    6,342.85x = 39,003,319.28
  5. Step 5: Solve for x
    x = 39,003,319.28/6,342.85
  6. Step 6: Final answer
    x = 6,149.18

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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.