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Finding the Fourth Proportional to 2,654.57, 3,979.13 and 1,010.68

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Solution

The fourth proportional to 2,654.57, 3,979.13 and 1,010.68 is: 1,514.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,654.57 : 3,979.13 = 1,010.68 : x
  2. Step 2: Convert to fraction form
    2,654.57/3,979.13 = 1,010.68/x
  3. Step 3: Cross multiply
    2,654.57x = 3,979.13 × 1,010.68
  4. Step 4: Simplify right side
    2,654.57x = 4,021,612.11
  5. Step 5: Solve for x
    x = 4,021,612.11/2,654.57
  6. Step 6: Final answer
    x = 1,514.98

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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.