Home / 5,418.74-8,138.64-4,432.97

Finding the Fourth Proportional to 5,418.74, 8,138.64 and 4,432.97

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Solution

The fourth proportional to 5,418.74, 8,138.64 and 4,432.97 is: 6,658.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.74 : 8,138.64 = 4,432.97 : x
  2. Step 2: Convert to fraction form
    5,418.74/8,138.64 = 4,432.97/x
  3. Step 3: Cross multiply
    5,418.74x = 8,138.64 × 4,432.97
  4. Step 4: Simplify right side
    5,418.74x = 36,078,346.96
  5. Step 5: Solve for x
    x = 36,078,346.96/5,418.74
  6. Step 6: Final answer
    x = 6,658.07

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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.