Home / 2,517.47-3,777.21-1,129.83

Finding the Fourth Proportional to 2,517.47, 3,777.21 and 1,129.83

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Solution

The fourth proportional to 2,517.47, 3,777.21 and 1,129.83 is: 1,695.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,517.47 : 3,777.21 = 1,129.83 : x
  2. Step 2: Convert to fraction form
    2,517.47/3,777.21 = 1,129.83/x
  3. Step 3: Cross multiply
    2,517.47x = 3,777.21 × 1,129.83
  4. Step 4: Simplify right side
    2,517.47x = 4,267,605.17
  5. Step 5: Solve for x
    x = 4,267,605.17/2,517.47
  6. Step 6: Final answer
    x = 1,695.20

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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.