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Finding the Third Proportional to 3,811 and 8,338

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Solution

The third proportional to 3,811 and 8,338 is: 18,242.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811 : 8,338 = 8,338 : x
  2. Step 2: Convert to fraction form
    3,811/8,338 = 8,338/x
  3. Step 3: Cross multiply
    3,811x = 8,338 × 8,338
  4. Step 4: Simplify right side
    3,811x = 69,522,244
  5. Step 5: Solve for x
    x = 69,522,244/3,811
  6. Step 6: Final answer
    x = 18,242.52

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.