Home / 2,261.28-3,391.92-1,028.73

Finding the Fourth Proportional to 2,261.28, 3,391.92 and 1,028.73

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Solution

The fourth proportional to 2,261.28, 3,391.92 and 1,028.73 is: 1,543.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,261.28 : 3,391.92 = 1,028.73 : x
  2. Step 2: Convert to fraction form
    2,261.28/3,391.92 = 1,028.73/x
  3. Step 3: Cross multiply
    2,261.28x = 3,391.92 × 1,028.73
  4. Step 4: Simplify right side
    2,261.28x = 3,489,369.86
  5. Step 5: Solve for x
    x = 3,489,369.86/2,261.28
  6. Step 6: Final answer
    x = 1,543.10

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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.