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Finding the Third Proportional to 3.12 and 5.73

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Solution

The third proportional to 3.12 and 5.73 is: 10.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3.12 : 5.73 = 5.73 : x
  2. Step 2: Convert to fraction form
    3.12/5.73 = 5.73/x
  3. Step 3: Cross multiply
    3.12x = 5.73 × 5.73
  4. Step 4: Simplify right side
    3.12x = 32.81
  5. Step 5: Solve for x
    x = 32.81/3.12
  6. Step 6: Final answer
    x = 10.50

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Why These Related Problems?

These problems maintain the same ratio (1.83) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.