Home / 4,120.20-6,178.50-1,198.44

Finding the Fourth Proportional to 4,120.20, 6,178.50 and 1,198.44

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Solution

The fourth proportional to 4,120.20, 6,178.50 and 1,198.44 is: 1,797.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.20 : 6,178.50 = 1,198.44 : x
  2. Step 2: Convert to fraction form
    4,120.20/6,178.50 = 1,198.44/x
  3. Step 3: Cross multiply
    4,120.20x = 6,178.50 × 1,198.44
  4. Step 4: Simplify right side
    4,120.20x = 7,404,561.54
  5. Step 5: Solve for x
    x = 7,404,561.54/4,120.20
  6. Step 6: Final answer
    x = 1,797.14

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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.