Home / 8,125.29-12,189.20-2,932.38

Finding the Fourth Proportional to 8,125.29, 12,189.20 and 2,932.38

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Solution

The fourth proportional to 8,125.29, 12,189.20 and 2,932.38 is: 4,399.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,125.29 : 12,189.20 = 2,932.38 : x
  2. Step 2: Convert to fraction form
    8,125.29/12,189.20 = 2,932.38/x
  3. Step 3: Cross multiply
    8,125.29x = 12,189.20 × 2,932.38
  4. Step 4: Simplify right side
    8,125.29x = 35,743,351.63
  5. Step 5: Solve for x
    x = 35,743,351.63/8,125.29
  6. Step 6: Final answer
    x = 4,399.02

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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.