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Finding the Third Proportional to 2.20 and 2.93

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Solution

The third proportional to 2.20 and 2.93 is: 3.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2.20 : 2.93 = 2.93 : x
  2. Step 2: Convert to fraction form
    2.20/2.93 = 2.93/x
  3. Step 3: Cross multiply
    2.20x = 2.93 × 2.93
  4. Step 4: Simplify right side
    2.20x = 8.59
  5. Step 5: Solve for x
    x = 8.59/2.20
  6. Step 6: Final answer
    x = 3.91

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.