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Finding the Third Proportional to 2.75 and 4.02

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Solution

The third proportional to 2.75 and 4.02 is: 5.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2.75 : 4.02 = 4.02 : x
  2. Step 2: Convert to fraction form
    2.75/4.02 = 4.02/x
  3. Step 3: Cross multiply
    2.75x = 4.02 × 4.02
  4. Step 4: Simplify right side
    2.75x = 16.17
  5. Step 5: Solve for x
    x = 16.17/2.75
  6. Step 6: Final answer
    x = 5.89

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.