Home / 3,418.81-5,126.90-1,337.61

Finding the Fourth Proportional to 3,418.81, 5,126.90 and 1,337.61

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Solution

The fourth proportional to 3,418.81, 5,126.90 and 1,337.61 is: 2,005.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.81 : 5,126.90 = 1,337.61 : x
  2. Step 2: Convert to fraction form
    3,418.81/5,126.90 = 1,337.61/x
  3. Step 3: Cross multiply
    3,418.81x = 5,126.90 × 1,337.61
  4. Step 4: Simplify right side
    3,418.81x = 6,857,805.25
  5. Step 5: Solve for x
    x = 6,857,805.25/3,418.81
  6. Step 6: Final answer
    x = 2,005.91

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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.