Home / 3,125.76-4,687.26-1,151.40

Finding the Fourth Proportional to 3,125.76, 4,687.26 and 1,151.40

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Solution

The fourth proportional to 3,125.76, 4,687.26 and 1,151.40 is: 1,726.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.76 : 4,687.26 = 1,151.40 : x
  2. Step 2: Convert to fraction form
    3,125.76/4,687.26 = 1,151.40/x
  3. Step 3: Cross multiply
    3,125.76x = 4,687.26 × 1,151.40
  4. Step 4: Simplify right side
    3,125.76x = 5,396,911.16
  5. Step 5: Solve for x
    x = 5,396,911.16/3,125.76
  6. Step 6: Final answer
    x = 1,726.59

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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.