Home / 4,121.12-6,180.18-1,198.64

Finding the Fourth Proportional to 4,121.12, 6,180.18 and 1,198.64

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Solution

The fourth proportional to 4,121.12, 6,180.18 and 1,198.64 is: 1,797.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,121.12 : 6,180.18 = 1,198.64 : x
  2. Step 2: Convert to fraction form
    4,121.12/6,180.18 = 1,198.64/x
  3. Step 3: Cross multiply
    4,121.12x = 6,180.18 × 1,198.64
  4. Step 4: Simplify right side
    4,121.12x = 7,407,810.96
  5. Step 5: Solve for x
    x = 7,407,810.96/4,121.12
  6. Step 6: Final answer
    x = 1,797.52

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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.