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Finding the Fourth Proportional to 3,800.31, 5,706.20 and 3,099.66

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Solution

The fourth proportional to 3,800.31, 5,706.20 and 3,099.66 is: 4,654.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,800.31 : 5,706.20 = 3,099.66 : x
  2. Step 2: Convert to fraction form
    3,800.31/5,706.20 = 3,099.66/x
  3. Step 3: Cross multiply
    3,800.31x = 5,706.20 × 3,099.66
  4. Step 4: Simplify right side
    3,800.31x = 17,687,279.89
  5. Step 5: Solve for x
    x = 17,687,279.89/3,800.31
  6. Step 6: Final answer
    x = 4,654.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.