Home / 4,872.24-6,724.62-3,105.90

Finding the Fourth Proportional to 4,872.24, 6,724.62 and 3,105.90

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Solution

The fourth proportional to 4,872.24, 6,724.62 and 3,105.90 is: 4,286.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,872.24 : 6,724.62 = 3,105.90 : x
  2. Step 2: Convert to fraction form
    4,872.24/6,724.62 = 3,105.90/x
  3. Step 3: Cross multiply
    4,872.24x = 6,724.62 × 3,105.90
  4. Step 4: Simplify right side
    4,872.24x = 20,885,997.26
  5. Step 5: Solve for x
    x = 20,885,997.26/4,872.24
  6. Step 6: Final answer
    x = 4,286.73

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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.