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Finding the Third Proportional to 1.92 and 3.13

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Solution

The third proportional to 1.92 and 3.13 is: 5.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1.92 : 3.13 = 3.13 : x
  2. Step 2: Convert to fraction form
    1.92/3.13 = 3.13/x
  3. Step 3: Cross multiply
    1.92x = 3.13 × 3.13
  4. Step 4: Simplify right side
    1.92x = 9.78
  5. Step 5: Solve for x
    x = 9.78/1.92
  6. Step 6: Final answer
    x = 5.08

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Why These Related Problems?

These problems maintain the same ratio (1.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.