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Finding the Fourth Proportional to 3,955.11, 5,933.79 and 1,181.90

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Solution

The fourth proportional to 3,955.11, 5,933.79 and 1,181.90 is: 1,773.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,955.11 : 5,933.79 = 1,181.90 : x
  2. Step 2: Convert to fraction form
    3,955.11/5,933.79 = 1,181.90/x
  3. Step 3: Cross multiply
    3,955.11x = 5,933.79 × 1,181.90
  4. Step 4: Simplify right side
    3,955.11x = 7,013,116.73
  5. Step 5: Solve for x
    x = 7,013,116.73/3,955.11
  6. Step 6: Final answer
    x = 1,773.18

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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.