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Finding the Third Proportional to 2.18 and 3.33

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Solution

The third proportional to 2.18 and 3.33 is: 5.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2.18 : 3.33 = 3.33 : x
  2. Step 2: Convert to fraction form
    2.18/3.33 = 3.33/x
  3. Step 3: Cross multiply
    2.18x = 3.33 × 3.33
  4. Step 4: Simplify right side
    2.18x = 11.11
  5. Step 5: Solve for x
    x = 11.11/2.18
  6. Step 6: Final answer
    x = 5.09

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.