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Finding the Fourth Proportional to 3,191.38, 4,404.50 and 1,794.13

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Solution

The fourth proportional to 3,191.38, 4,404.50 and 1,794.13 is: 2,476.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.38 : 4,404.50 = 1,794.13 : x
  2. Step 2: Convert to fraction form
    3,191.38/4,404.50 = 1,794.13/x
  3. Step 3: Cross multiply
    3,191.38x = 4,404.50 × 1,794.13
  4. Step 4: Simplify right side
    3,191.38x = 7,902,245.59
  5. Step 5: Solve for x
    x = 7,902,245.59/3,191.38
  6. Step 6: Final answer
    x = 2,476.12

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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.