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Finding the Fourth Proportional to 2,677.81, 4,021.17 and 1,805.92

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Solution

The fourth proportional to 2,677.81, 4,021.17 and 1,805.92 is: 2,711.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,677.81 : 4,021.17 = 1,805.92 : x
  2. Step 2: Convert to fraction form
    2,677.81/4,021.17 = 1,805.92/x
  3. Step 3: Cross multiply
    2,677.81x = 4,021.17 × 1,805.92
  4. Step 4: Simplify right side
    2,677.81x = 7,261,910.89
  5. Step 5: Solve for x
    x = 7,261,910.89/2,677.81
  6. Step 6: Final answer
    x = 2,711.88

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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.