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Finding the Third Proportional to 2.54 and 5.49

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Solution

The third proportional to 2.54 and 5.49 is: 11.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2.54 : 5.49 = 5.49 : x
  2. Step 2: Convert to fraction form
    2.54/5.49 = 5.49/x
  3. Step 3: Cross multiply
    2.54x = 5.49 × 5.49
  4. Step 4: Simplify right side
    2.54x = 30.15
  5. Step 5: Solve for x
    x = 30.15/2.54
  6. Step 6: Final answer
    x = 11.86

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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.