Home / 8,120.80-12,181.97-2,277.39

Finding the Fourth Proportional to 8,120.80, 12,181.97 and 2,277.39

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Solution

The fourth proportional to 8,120.80, 12,181.97 and 2,277.39 is: 3,416.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,120.80 : 12,181.97 = 2,277.39 : x
  2. Step 2: Convert to fraction form
    8,120.80/12,181.97 = 2,277.39/x
  3. Step 3: Cross multiply
    8,120.80x = 12,181.97 × 2,277.39
  4. Step 4: Simplify right side
    8,120.80x = 27,743,096.66
  5. Step 5: Solve for x
    x = 27,743,096.66/8,120.80
  6. Step 6: Final answer
    x = 3,416.30

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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.