Home / 4,121.20-6,181.82-1,199.52

Finding the Fourth Proportional to 4,121.20, 6,181.82 and 1,199.52

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Solution

The fourth proportional to 4,121.20, 6,181.82 and 1,199.52 is: 1,799.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,121.20 : 6,181.82 = 1,199.52 : x
  2. Step 2: Convert to fraction form
    4,121.20/6,181.82 = 1,199.52/x
  3. Step 3: Cross multiply
    4,121.20x = 6,181.82 × 1,199.52
  4. Step 4: Simplify right side
    4,121.20x = 7,415,216.73
  5. Step 5: Solve for x
    x = 7,415,216.73/4,121.20
  6. Step 6: Final answer
    x = 1,799.29

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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.