Home / 5,408.10-8,112.15-3,932.10

Finding the Fourth Proportional to 5,408.10, 8,112.15 and 3,932.10

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Solution

The fourth proportional to 5,408.10, 8,112.15 and 3,932.10 is: 5,898.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,408.10 : 8,112.15 = 3,932.10 : x
  2. Step 2: Convert to fraction form
    5,408.10/8,112.15 = 3,932.10/x
  3. Step 3: Cross multiply
    5,408.10x = 8,112.15 × 3,932.10
  4. Step 4: Simplify right side
    5,408.10x = 31,897,785.02
  5. Step 5: Solve for x
    x = 31,897,785.02/5,408.10
  6. Step 6: Final answer
    x = 5,898.15

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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.