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Finding the Fourth Proportional to 6,394.43, 8,818.11 and 3,876.95

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Solution

The fourth proportional to 6,394.43, 8,818.11 and 3,876.95 is: 5,346.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,394.43 : 8,818.11 = 3,876.95 : x
  2. Step 2: Convert to fraction form
    6,394.43/8,818.11 = 3,876.95/x
  3. Step 3: Cross multiply
    6,394.43x = 8,818.11 × 3,876.95
  4. Step 4: Simplify right side
    6,394.43x = 34,187,327.47
  5. Step 5: Solve for x
    x = 34,187,327.47/6,394.43
  6. Step 6: Final answer
    x = 5,346.43

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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.