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Finding the Fourth Proportional to 2,042.57, 3,062.94 and 581.38

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Solution

The fourth proportional to 2,042.57, 3,062.94 and 581.38 is: 871.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,042.57 : 3,062.94 = 581.38 : x
  2. Step 2: Convert to fraction form
    2,042.57/3,062.94 = 581.38/x
  3. Step 3: Cross multiply
    2,042.57x = 3,062.94 × 581.38
  4. Step 4: Simplify right side
    2,042.57x = 1,780,732.06
  5. Step 5: Solve for x
    x = 1,780,732.06/2,042.57
  6. Step 6: Final answer
    x = 871.81

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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.