Home / 3,723.62-5,138.46-2,231.69

Finding the Fourth Proportional to 3,723.62, 5,138.46 and 2,231.69

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Solution

The fourth proportional to 3,723.62, 5,138.46 and 2,231.69 is: 3,079.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,723.62 : 5,138.46 = 2,231.69 : x
  2. Step 2: Convert to fraction form
    3,723.62/5,138.46 = 2,231.69/x
  3. Step 3: Cross multiply
    3,723.62x = 5,138.46 × 2,231.69
  4. Step 4: Simplify right side
    3,723.62x = 11,467,424.11
  5. Step 5: Solve for x
    x = 11,467,424.11/3,723.62
  6. Step 6: Final answer
    x = 3,079.65

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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.