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Finding the Fourth Proportional to 6,808.25, 10,212.38 and 2,191.25

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Solution

The fourth proportional to 6,808.25, 10,212.38 and 2,191.25 is: 3,286.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,808.25 : 10,212.38 = 2,191.25 : x
  2. Step 2: Convert to fraction form
    6,808.25/10,212.38 = 2,191.25/x
  3. Step 3: Cross multiply
    6,808.25x = 10,212.38 × 2,191.25
  4. Step 4: Simplify right side
    6,808.25x = 22,377,877.68
  5. Step 5: Solve for x
    x = 22,377,877.68/6,808.25
  6. Step 6: Final answer
    x = 3,286.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.