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Finding the Third Proportional to 3,432 and 3,828

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Solution

The third proportional to 3,432 and 3,828 is: 4,269.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,432 : 3,828 = 3,828 : x
  2. Step 2: Convert to fraction form
    3,432/3,828 = 3,828/x
  3. Step 3: Cross multiply
    3,432x = 3,828 × 3,828
  4. Step 4: Simplify right side
    3,432x = 14,653,584
  5. Step 5: Solve for x
    x = 14,653,584/3,432
  6. Step 6: Final answer
    x = 4,269.69

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Why These Related Problems?

These problems maintain the same ratio (1.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.