Home / 8,522.20-12,778.08-3,322

Finding the Fourth Proportional to 8,522.20, 12,778.08 and 3,322

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Solution

The fourth proportional to 8,522.20, 12,778.08 and 3,322 is: 4,980.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,522.20 : 12,778.08 = 3,322 : x
  2. Step 2: Convert to fraction form
    8,522.20/12,778.08 = 3,322/x
  3. Step 3: Cross multiply
    8,522.20x = 12,778.08 × 3,322
  4. Step 4: Simplify right side
    8,522.20x = 42,448,781.76
  5. Step 5: Solve for x
    x = 42,448,781.76/8,522.20
  6. Step 6: Final answer
    x = 4,980.97

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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.