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Finding the Third Proportional to 3.28 and 4.83

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Solution

The third proportional to 3.28 and 4.83 is: 7.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3.28 : 4.83 = 4.83 : x
  2. Step 2: Convert to fraction form
    3.28/4.83 = 4.83/x
  3. Step 3: Cross multiply
    3.28x = 4.83 × 4.83
  4. Step 4: Simplify right side
    3.28x = 23.31
  5. Step 5: Solve for x
    x = 23.31/3.28
  6. Step 6: Final answer
    x = 7.10

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.