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Finding the Fourth Proportional to 2,691.77, 3,714.24 and 1,512.62

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Solution

The fourth proportional to 2,691.77, 3,714.24 and 1,512.62 is: 2,087.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,691.77 : 3,714.24 = 1,512.62 : x
  2. Step 2: Convert to fraction form
    2,691.77/3,714.24 = 1,512.62/x
  3. Step 3: Cross multiply
    2,691.77x = 3,714.24 × 1,512.62
  4. Step 4: Simplify right side
    2,691.77x = 5,618,215.14
  5. Step 5: Solve for x
    x = 5,618,215.14/2,691.77
  6. Step 6: Final answer
    x = 2,087.18

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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.