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Finding the Fourth Proportional to 3,143, 4,337.92 and 2,350.32

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Solution

The fourth proportional to 3,143, 4,337.92 and 2,350.32 is: 3,243.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,143 : 4,337.92 = 2,350.32 : x
  2. Step 2: Convert to fraction form
    3,143/4,337.92 = 2,350.32/x
  3. Step 3: Cross multiply
    3,143x = 4,337.92 × 2,350.32
  4. Step 4: Simplify right side
    3,143x = 10,195,500.13
  5. Step 5: Solve for x
    x = 10,195,500.13/3,143
  6. Step 6: Final answer
    x = 3,243.88

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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.