Home / 6,121.17-8,447.90-3,731.27

Finding the Fourth Proportional to 6,121.17, 8,447.90 and 3,731.27

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Solution

The fourth proportional to 6,121.17, 8,447.90 and 3,731.27 is: 5,149.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,121.17 : 8,447.90 = 3,731.27 : x
  2. Step 2: Convert to fraction form
    6,121.17/8,447.90 = 3,731.27/x
  3. Step 3: Cross multiply
    6,121.17x = 8,447.90 × 3,731.27
  4. Step 4: Simplify right side
    6,121.17x = 31,521,334.94
  5. Step 5: Solve for x
    x = 31,521,334.94/6,121.17
  6. Step 6: Final answer
    x = 5,149.56

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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.