Home / 2,672.22-3,687.87-1,553.52

Finding the Fourth Proportional to 2,672.22, 3,687.87 and 1,553.52

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Solution

The fourth proportional to 2,672.22, 3,687.87 and 1,553.52 is: 2,143.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,672.22 : 3,687.87 = 1,553.52 : x
  2. Step 2: Convert to fraction form
    2,672.22/3,687.87 = 1,553.52/x
  3. Step 3: Cross multiply
    2,672.22x = 3,687.87 × 1,553.52
  4. Step 4: Simplify right side
    2,672.22x = 5,729,179.80
  5. Step 5: Solve for x
    x = 5,729,179.80/2,672.22
  6. Step 6: Final answer
    x = 2,143.98

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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.