Home / 3,721.07-5,136.20-2,542.11

Finding the Fourth Proportional to 3,721.07, 5,136.20 and 2,542.11

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Solution

The fourth proportional to 3,721.07, 5,136.20 and 2,542.11 is: 3,508.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.07 : 5,136.20 = 2,542.11 : x
  2. Step 2: Convert to fraction form
    3,721.07/5,136.20 = 2,542.11/x
  3. Step 3: Cross multiply
    3,721.07x = 5,136.20 × 2,542.11
  4. Step 4: Simplify right side
    3,721.07x = 13,056,772.67
  5. Step 5: Solve for x
    x = 13,056,772.67/3,721.07
  6. Step 6: Final answer
    x = 3,508.88

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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.