Home / 4,119.72-6,180.90-1,198.20

Finding the Fourth Proportional to 4,119.72, 6,180.90 and 1,198.20

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Solution

The fourth proportional to 4,119.72, 6,180.90 and 1,198.20 is: 1,797.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,119.72 : 6,180.90 = 1,198.20 : x
  2. Step 2: Convert to fraction form
    4,119.72/6,180.90 = 1,198.20/x
  3. Step 3: Cross multiply
    4,119.72x = 6,180.90 × 1,198.20
  4. Step 4: Simplify right side
    4,119.72x = 7,405,954.38
  5. Step 5: Solve for x
    x = 7,405,954.38/4,119.72
  6. Step 6: Final answer
    x = 1,797.68

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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.