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Finding the Fourth Proportional to 3,657.77, 5,487.39 and 1,191.92

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Solution

The fourth proportional to 3,657.77, 5,487.39 and 1,191.92 is: 1,788.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,657.77 : 5,487.39 = 1,191.92 : x
  2. Step 2: Convert to fraction form
    3,657.77/5,487.39 = 1,191.92/x
  3. Step 3: Cross multiply
    3,657.77x = 5,487.39 × 1,191.92
  4. Step 4: Simplify right side
    3,657.77x = 6,540,502.45
  5. Step 5: Solve for x
    x = 6,540,502.45/3,657.77
  6. Step 6: Final answer
    x = 1,788.11

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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.