Home / 5,129.24-7,076.45-3,934.43

Finding the Fourth Proportional to 5,129.24, 7,076.45 and 3,934.43

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Solution

The fourth proportional to 5,129.24, 7,076.45 and 3,934.43 is: 5,428.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,129.24 : 7,076.45 = 3,934.43 : x
  2. Step 2: Convert to fraction form
    5,129.24/7,076.45 = 3,934.43/x
  3. Step 3: Cross multiply
    5,129.24x = 7,076.45 × 3,934.43
  4. Step 4: Simplify right side
    5,129.24x = 27,841,777.50
  5. Step 5: Solve for x
    x = 27,841,777.50/5,129.24
  6. Step 6: Final answer
    x = 5,428.06

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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.