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Finding the Fourth Proportional to 6,472.85, 8,934.17 and 3,821.11

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Solution

The fourth proportional to 6,472.85, 8,934.17 and 3,821.11 is: 5,274.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,472.85 : 8,934.17 = 3,821.11 : x
  2. Step 2: Convert to fraction form
    6,472.85/8,934.17 = 3,821.11/x
  3. Step 3: Cross multiply
    6,472.85x = 8,934.17 × 3,821.11
  4. Step 4: Simplify right side
    6,472.85x = 34,138,404.89
  5. Step 5: Solve for x
    x = 34,138,404.89/6,472.85
  6. Step 6: Final answer
    x = 5,274.10

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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.