Home / 3,932.31-5,902.11-1,985.88

Finding the Fourth Proportional to 3,932.31, 5,902.11 and 1,985.88

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Solution

The fourth proportional to 3,932.31, 5,902.11 and 1,985.88 is: 2,980.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,932.31 : 5,902.11 = 1,985.88 : x
  2. Step 2: Convert to fraction form
    3,932.31/5,902.11 = 1,985.88/x
  3. Step 3: Cross multiply
    3,932.31x = 5,902.11 × 1,985.88
  4. Step 4: Simplify right side
    3,932.31x = 11,720,882.21
  5. Step 5: Solve for x
    x = 11,720,882.21/3,932.31
  6. Step 6: Final answer
    x = 2,980.66

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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.