Home / 3,731.31-5,151.29-2,239.61

Finding the Fourth Proportional to 3,731.31, 5,151.29 and 2,239.61

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Solution

The fourth proportional to 3,731.31, 5,151.29 and 2,239.61 is: 3,091.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,731.31 : 5,151.29 = 2,239.61 : x
  2. Step 2: Convert to fraction form
    3,731.31/5,151.29 = 2,239.61/x
  3. Step 3: Cross multiply
    3,731.31x = 5,151.29 × 2,239.61
  4. Step 4: Simplify right side
    3,731.31x = 11,536,843.64
  5. Step 5: Solve for x
    x = 11,536,843.64/3,731.31
  6. Step 6: Final answer
    x = 3,091.90

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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.