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Finding the Third Proportional to 1,379.81 and 2,042.44

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Solution

The third proportional to 1,379.81 and 2,042.44 is: 3,023.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379.81 : 2,042.44 = 2,042.44 : x
  2. Step 2: Convert to fraction form
    1,379.81/2,042.44 = 2,042.44/x
  3. Step 3: Cross multiply
    1,379.81x = 2,042.44 × 2,042.44
  4. Step 4: Simplify right side
    1,379.81x = 4,171,550.94
  5. Step 5: Solve for x
    x = 4,171,550.94/1,379.81
  6. Step 6: Final answer
    x = 3,023.27

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.