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Finding the Third Proportional to 890.63 and 1,363.31

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Solution

The third proportional to 890.63 and 1,363.31 is: 2,086.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    890.63 : 1,363.31 = 1,363.31 : x
  2. Step 2: Convert to fraction form
    890.63/1,363.31 = 1,363.31/x
  3. Step 3: Cross multiply
    890.63x = 1,363.31 × 1,363.31
  4. Step 4: Simplify right side
    890.63x = 1,858,620.97
  5. Step 5: Solve for x
    x = 1,858,620.97/890.63
  6. Step 6: Final answer
    x = 2,086.87

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.