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Finding the Third Proportional to 1.42 and 3.34

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Solution

The third proportional to 1.42 and 3.34 is: 7.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1.42 : 3.34 = 3.34 : x
  2. Step 2: Convert to fraction form
    1.42/3.34 = 3.34/x
  3. Step 3: Cross multiply
    1.42x = 3.34 × 3.34
  4. Step 4: Simplify right side
    1.42x = 11.13
  5. Step 5: Solve for x
    x = 11.13/1.42
  6. Step 6: Final answer
    x = 7.83

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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.