Home / 5,408.05-8,100.72-3,432.66

Finding the Fourth Proportional to 5,408.05, 8,100.72 and 3,432.66

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Solution

The fourth proportional to 5,408.05, 8,100.72 and 3,432.66 is: 5,141.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,408.05 : 8,100.72 = 3,432.66 : x
  2. Step 2: Convert to fraction form
    5,408.05/8,100.72 = 3,432.66/x
  3. Step 3: Cross multiply
    5,408.05x = 8,100.72 × 3,432.66
  4. Step 4: Simplify right side
    5,408.05x = 27,806,989.45
  5. Step 5: Solve for x
    x = 27,806,989.45/5,408.05
  6. Step 6: Final answer
    x = 5,141.78

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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.