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Finding the Third Proportional to 3,859.13 and 7,854.84

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Solution

The third proportional to 3,859.13 and 7,854.84 is: 15,987.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,859.13 : 7,854.84 = 7,854.84 : x
  2. Step 2: Convert to fraction form
    3,859.13/7,854.84 = 7,854.84/x
  3. Step 3: Cross multiply
    3,859.13x = 7,854.84 × 7,854.84
  4. Step 4: Simplify right side
    3,859.13x = 61,698,570.34
  5. Step 5: Solve for x
    x = 61,698,570.34/3,859.13
  6. Step 6: Final answer
    x = 15,987.71

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.