Home / 2,512.28-3,768.95-757.13

Finding the Fourth Proportional to 2,512.28, 3,768.95 and 757.13

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Solution

The fourth proportional to 2,512.28, 3,768.95 and 757.13 is: 1,135.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,512.28 : 3,768.95 = 757.13 : x
  2. Step 2: Convert to fraction form
    2,512.28/3,768.95 = 757.13/x
  3. Step 3: Cross multiply
    2,512.28x = 3,768.95 × 757.13
  4. Step 4: Simplify right side
    2,512.28x = 2,853,585.11
  5. Step 5: Solve for x
    x = 2,853,585.11/2,512.28
  6. Step 6: Final answer
    x = 1,135.85

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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.