Home / 3,721.87-5,136.88-2,230.66

Finding the Fourth Proportional to 3,721.87, 5,136.88 and 2,230.66

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Solution

The fourth proportional to 3,721.87, 5,136.88 and 2,230.66 is: 3,078.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.87 : 5,136.88 = 2,230.66 : x
  2. Step 2: Convert to fraction form
    3,721.87/5,136.88 = 2,230.66/x
  3. Step 3: Cross multiply
    3,721.87x = 5,136.88 × 2,230.66
  4. Step 4: Simplify right side
    3,721.87x = 11,458,632.74
  5. Step 5: Solve for x
    x = 11,458,632.74/3,721.87
  6. Step 6: Final answer
    x = 3,078.73

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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.