Home / 4,119.80-6,179.90-1,198.13

Finding the Fourth Proportional to 4,119.80, 6,179.90 and 1,198.13

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Solution

The fourth proportional to 4,119.80, 6,179.90 and 1,198.13 is: 1,797.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,119.80 : 6,179.90 = 1,198.13 : x
  2. Step 2: Convert to fraction form
    4,119.80/6,179.90 = 1,198.13/x
  3. Step 3: Cross multiply
    4,119.80x = 6,179.90 × 1,198.13
  4. Step 4: Simplify right side
    4,119.80x = 7,404,286.70
  5. Step 5: Solve for x
    x = 7,404,286.70/4,119.80
  6. Step 6: Final answer
    x = 1,797.25

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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.