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Finding the Third Proportional to 4.76 and 7.18

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Solution

The third proportional to 4.76 and 7.18 is: 10.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4.76 : 7.18 = 7.18 : x
  2. Step 2: Convert to fraction form
    4.76/7.18 = 7.18/x
  3. Step 3: Cross multiply
    4.76x = 7.18 × 7.18
  4. Step 4: Simplify right side
    4.76x = 51.50
  5. Step 5: Solve for x
    x = 51.50/4.76
  6. Step 6: Final answer
    x = 10.82

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.