Home / 2,691.18-3,713.79-1,512.24

Finding the Fourth Proportional to 2,691.18, 3,713.79 and 1,512.24

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Solution

The fourth proportional to 2,691.18, 3,713.79 and 1,512.24 is: 2,086.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,691.18 : 3,713.79 = 1,512.24 : x
  2. Step 2: Convert to fraction form
    2,691.18/3,713.79 = 1,512.24/x
  3. Step 3: Cross multiply
    2,691.18x = 3,713.79 × 1,512.24
  4. Step 4: Simplify right side
    2,691.18x = 5,616,141.79
  5. Step 5: Solve for x
    x = 5,616,141.79/2,691.18
  6. Step 6: Final answer
    x = 2,086.87

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1.5x scale

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.