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Finding the Fourth Proportional to 3,657.56, 5,512.20 and 3,306.92

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Solution

The fourth proportional to 3,657.56, 5,512.20 and 3,306.92 is: 4,983.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,657.56 : 5,512.20 = 3,306.92 : x
  2. Step 2: Convert to fraction form
    3,657.56/5,512.20 = 3,306.92/x
  3. Step 3: Cross multiply
    3,657.56x = 5,512.20 × 3,306.92
  4. Step 4: Simplify right side
    3,657.56x = 18,228,404.42
  5. Step 5: Solve for x
    x = 18,228,404.42/3,657.56
  6. Step 6: Final answer
    x = 4,983.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.