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Finding the Third Proportional to 513.97 and 1,108.94

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Solution

The third proportional to 513.97 and 1,108.94 is: 2,392.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    513.97 : 1,108.94 = 1,108.94 : x
  2. Step 2: Convert to fraction form
    513.97/1,108.94 = 1,108.94/x
  3. Step 3: Cross multiply
    513.97x = 1,108.94 × 1,108.94
  4. Step 4: Simplify right side
    513.97x = 1,229,742.38
  5. Step 5: Solve for x
    x = 1,229,742.38/513.97
  6. Step 6: Final answer
    x = 2,392.64

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.