Home / 3,721.34-5,135.61-2,229.50

Finding the Fourth Proportional to 3,721.34, 5,135.61 and 2,229.50

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Solution

The fourth proportional to 3,721.34, 5,135.61 and 2,229.50 is: 3,076.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.34 : 5,135.61 = 2,229.50 : x
  2. Step 2: Convert to fraction form
    3,721.34/5,135.61 = 2,229.50/x
  3. Step 3: Cross multiply
    3,721.34x = 5,135.61 × 2,229.50
  4. Step 4: Simplify right side
    3,721.34x = 11,449,842.50
  5. Step 5: Solve for x
    x = 11,449,842.50/3,721.34
  6. Step 6: Final answer
    x = 3,076.81

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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.