Home / 5,129.34-7,691.25-2,658.03

Finding the Fourth Proportional to 5,129.34, 7,691.25 and 2,658.03

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Solution

The fourth proportional to 5,129.34, 7,691.25 and 2,658.03 is: 3,985.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,129.34 : 7,691.25 = 2,658.03 : x
  2. Step 2: Convert to fraction form
    5,129.34/7,691.25 = 2,658.03/x
  3. Step 3: Cross multiply
    5,129.34x = 7,691.25 × 2,658.03
  4. Step 4: Simplify right side
    5,129.34x = 20,443,573.24
  5. Step 5: Solve for x
    x = 20,443,573.24/5,129.34
  6. Step 6: Final answer
    x = 3,985.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.