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Finding the Fourth Proportional to 2,408.92, 3,613.38 and 677.54

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Solution

The fourth proportional to 2,408.92, 3,613.38 and 677.54 is: 1,016.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,408.92 : 3,613.38 = 677.54 : x
  2. Step 2: Convert to fraction form
    2,408.92/3,613.38 = 677.54/x
  3. Step 3: Cross multiply
    2,408.92x = 3,613.38 × 677.54
  4. Step 4: Simplify right side
    2,408.92x = 2,448,209.49
  5. Step 5: Solve for x
    x = 2,448,209.49/2,408.92
  6. Step 6: Final answer
    x = 1,016.31

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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.