Home / 3,720.62-5,134.50-2,127.61

Finding the Fourth Proportional to 3,720.62, 5,134.50 and 2,127.61

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Solution

The fourth proportional to 3,720.62, 5,134.50 and 2,127.61 is: 2,936.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.62 : 5,134.50 = 2,127.61 : x
  2. Step 2: Convert to fraction form
    3,720.62/5,134.50 = 2,127.61/x
  3. Step 3: Cross multiply
    3,720.62x = 5,134.50 × 2,127.61
  4. Step 4: Simplify right side
    3,720.62x = 10,924,213.55
  5. Step 5: Solve for x
    x = 10,924,213.55/3,720.62
  6. Step 6: Final answer
    x = 2,936.13

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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.