Home / 5,101.76-7,637.52-3,147.68

Finding the Fourth Proportional to 5,101.76, 7,637.52 and 3,147.68

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Solution

The fourth proportional to 5,101.76, 7,637.52 and 3,147.68 is: 4,712.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,101.76 : 7,637.52 = 3,147.68 : x
  2. Step 2: Convert to fraction form
    5,101.76/7,637.52 = 3,147.68/x
  3. Step 3: Cross multiply
    5,101.76x = 7,637.52 × 3,147.68
  4. Step 4: Simplify right side
    5,101.76x = 24,040,468.95
  5. Step 5: Solve for x
    x = 24,040,468.95/5,101.76
  6. Step 6: Final answer
    x = 4,712.19

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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.