Home / 5,414.11-8,118.28-2,489.91

Finding the Fourth Proportional to 5,414.11, 8,118.28 and 2,489.91

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Solution

The fourth proportional to 5,414.11, 8,118.28 and 2,489.91 is: 3,733.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,414.11 : 8,118.28 = 2,489.91 : x
  2. Step 2: Convert to fraction form
    5,414.11/8,118.28 = 2,489.91/x
  3. Step 3: Cross multiply
    5,414.11x = 8,118.28 × 2,489.91
  4. Step 4: Simplify right side
    5,414.11x = 20,213,745.22
  5. Step 5: Solve for x
    x = 20,213,745.22/5,414.11
  6. Step 6: Final answer
    x = 3,733.53

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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.