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Finding the Third Proportional to 2.54 and 4.38

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Solution

The third proportional to 2.54 and 4.38 is: 7.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2.54 : 4.38 = 4.38 : x
  2. Step 2: Convert to fraction form
    2.54/4.38 = 4.38/x
  3. Step 3: Cross multiply
    2.54x = 4.38 × 4.38
  4. Step 4: Simplify right side
    2.54x = 19.18
  5. Step 5: Solve for x
    x = 19.18/2.54
  6. Step 6: Final answer
    x = 7.56

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Why These Related Problems?

These problems maintain the same ratio (1.73) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.