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Finding the Fourth Proportional to 8,404.22, 12,606.33 and 2,560.78

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Solution

The fourth proportional to 8,404.22, 12,606.33 and 2,560.78 is: 3,841.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,404.22 : 12,606.33 = 2,560.78 : x
  2. Step 2: Convert to fraction form
    8,404.22/12,606.33 = 2,560.78/x
  3. Step 3: Cross multiply
    8,404.22x = 12,606.33 × 2,560.78
  4. Step 4: Simplify right side
    8,404.22x = 32,282,063.10
  5. Step 5: Solve for x
    x = 32,282,063.10/8,404.22
  6. Step 6: Final answer
    x = 3,841.17

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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.