Home / 6,138.66-8,468.44-4,149.90

Finding the Fourth Proportional to 6,138.66, 8,468.44 and 4,149.90

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Solution

The fourth proportional to 6,138.66, 8,468.44 and 4,149.90 is: 5,724.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,138.66 : 8,468.44 = 4,149.90 : x
  2. Step 2: Convert to fraction form
    6,138.66/8,468.44 = 4,149.90/x
  3. Step 3: Cross multiply
    6,138.66x = 8,468.44 × 4,149.90
  4. Step 4: Simplify right side
    6,138.66x = 35,143,179.16
  5. Step 5: Solve for x
    x = 35,143,179.16/6,138.66
  6. Step 6: Final answer
    x = 5,724.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.