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Finding the Third Proportional to 2.90 and 6.82

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Solution

The third proportional to 2.90 and 6.82 is: 16.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2.90 : 6.82 = 6.82 : x
  2. Step 2: Convert to fraction form
    2.90/6.82 = 6.82/x
  3. Step 3: Cross multiply
    2.90x = 6.82 × 6.82
  4. Step 4: Simplify right side
    2.90x = 46.49
  5. Step 5: Solve for x
    x = 46.49/2.90
  6. Step 6: Final answer
    x = 16.01

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Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.