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Finding the Third Proportional to 3,888 and 7,632

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Solution

The third proportional to 3,888 and 7,632 is: 14,981.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,888 : 7,632 = 7,632 : x
  2. Step 2: Convert to fraction form
    3,888/7,632 = 7,632/x
  3. Step 3: Cross multiply
    3,888x = 7,632 × 7,632
  4. Step 4: Simplify right side
    3,888x = 58,247,424
  5. Step 5: Solve for x
    x = 58,247,424/3,888
  6. Step 6: Final answer
    x = 14,981.33

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Why These Related Problems?

These problems maintain the same ratio (1.96) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.