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Finding the Fourth Proportional to 2,663.85, 3,676.13 and 1,545.45

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Solution

The fourth proportional to 2,663.85, 3,676.13 and 1,545.45 is: 2,132.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,663.85 : 3,676.13 = 1,545.45 : x
  2. Step 2: Convert to fraction form
    2,663.85/3,676.13 = 1,545.45/x
  3. Step 3: Cross multiply
    2,663.85x = 3,676.13 × 1,545.45
  4. Step 4: Simplify right side
    2,663.85x = 5,681,276.57
  5. Step 5: Solve for x
    x = 5,681,276.57/2,663.85
  6. Step 6: Final answer
    x = 2,132.73

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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.