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Finding the Fourth Proportional to 2,060.38, 3,091.07 and 673.78

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Solution

The fourth proportional to 2,060.38, 3,091.07 and 673.78 is: 1,010.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,060.38 : 3,091.07 = 673.78 : x
  2. Step 2: Convert to fraction form
    2,060.38/3,091.07 = 673.78/x
  3. Step 3: Cross multiply
    2,060.38x = 3,091.07 × 673.78
  4. Step 4: Simplify right side
    2,060.38x = 2,082,701.14
  5. Step 5: Solve for x
    x = 2,082,701.14/2,060.38
  6. Step 6: Final answer
    x = 1,010.83

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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.