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Finding the Fourth Proportional to 2,042.70, 3,063.13 and 581.50

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Solution

The fourth proportional to 2,042.70, 3,063.13 and 581.50 is: 871.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,042.70 : 3,063.13 = 581.50 : x
  2. Step 2: Convert to fraction form
    2,042.70/3,063.13 = 581.50/x
  3. Step 3: Cross multiply
    2,042.70x = 3,063.13 × 581.50
  4. Step 4: Simplify right side
    2,042.70x = 1,781,212.47
  5. Step 5: Solve for x
    x = 1,781,212.47/2,042.70
  6. Step 6: Final answer
    x = 871.99

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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.