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Finding the Fourth Proportional to 3,793.51, 5,691.60 and 1,945.50

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Solution

The fourth proportional to 3,793.51, 5,691.60 and 1,945.50 is: 2,918.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,793.51 : 5,691.60 = 1,945.50 : x
  2. Step 2: Convert to fraction form
    3,793.51/5,691.60 = 1,945.50/x
  3. Step 3: Cross multiply
    3,793.51x = 5,691.60 × 1,945.50
  4. Step 4: Simplify right side
    3,793.51x = 11,073,007.80
  5. Step 5: Solve for x
    x = 11,073,007.80/3,793.51
  6. Step 6: Final answer
    x = 2,918.93

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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.