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Finding the Fourth Proportional to 2,177.26, 3,265.88 and 877.82

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Solution

The fourth proportional to 2,177.26, 3,265.88 and 877.82 is: 1,316.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,177.26 : 3,265.88 = 877.82 : x
  2. Step 2: Convert to fraction form
    2,177.26/3,265.88 = 877.82/x
  3. Step 3: Cross multiply
    2,177.26x = 3,265.88 × 877.82
  4. Step 4: Simplify right side
    2,177.26x = 2,866,854.78
  5. Step 5: Solve for x
    x = 2,866,854.78/2,177.26
  6. Step 6: Final answer
    x = 1,316.73

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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.