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Finding the Third Proportional to 3.76 and 5.54

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Solution

The third proportional to 3.76 and 5.54 is: 8.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3.76 : 5.54 = 5.54 : x
  2. Step 2: Convert to fraction form
    3.76/5.54 = 5.54/x
  3. Step 3: Cross multiply
    3.76x = 5.54 × 5.54
  4. Step 4: Simplify right side
    3.76x = 30.68
  5. Step 5: Solve for x
    x = 30.68/3.76
  6. Step 6: Final answer
    x = 8.17

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.