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Finding the Fourth Proportional to 2,197.78, 3,296.07 and 736.75

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Solution

The fourth proportional to 2,197.78, 3,296.07 and 736.75 is: 1,104.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,197.78 : 3,296.07 = 736.75 : x
  2. Step 2: Convert to fraction form
    2,197.78/3,296.07 = 736.75/x
  3. Step 3: Cross multiply
    2,197.78x = 3,296.07 × 736.75
  4. Step 4: Simplify right side
    2,197.78x = 2,428,379.57
  5. Step 5: Solve for x
    x = 2,428,379.57/2,197.78
  6. Step 6: Final answer
    x = 1,104.92

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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.