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Finding the Fourth Proportional to 8,609.29, 12,910.29 and 3,268.96

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Solution

The fourth proportional to 8,609.29, 12,910.29 and 3,268.96 is: 4,902.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,609.29 : 12,910.29 = 3,268.96 : x
  2. Step 2: Convert to fraction form
    8,609.29/12,910.29 = 3,268.96/x
  3. Step 3: Cross multiply
    8,609.29x = 12,910.29 × 3,268.96
  4. Step 4: Simplify right side
    8,609.29x = 42,203,177.06
  5. Step 5: Solve for x
    x = 42,203,177.06/8,609.29
  6. Step 6: Final answer
    x = 4,902.05

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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.