Home / 2,691.12-3,713.65-1,512.17

Finding the Fourth Proportional to 2,691.12, 3,713.65 and 1,512.17

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Solution

The fourth proportional to 2,691.12, 3,713.65 and 1,512.17 is: 2,086.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,691.12 : 3,713.65 = 1,512.17 : x
  2. Step 2: Convert to fraction form
    2,691.12/3,713.65 = 1,512.17/x
  3. Step 3: Cross multiply
    2,691.12x = 3,713.65 × 1,512.17
  4. Step 4: Simplify right side
    2,691.12x = 5,615,661.70
  5. Step 5: Solve for x
    x = 5,615,661.70/2,691.12
  6. Step 6: Final answer
    x = 2,086.73

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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.