Home / 4,121.78-6,183.07-1,200.11

Finding the Fourth Proportional to 4,121.78, 6,183.07 and 1,200.11

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Solution

The fourth proportional to 4,121.78, 6,183.07 and 1,200.11 is: 1,800.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,121.78 : 6,183.07 = 1,200.11 : x
  2. Step 2: Convert to fraction form
    4,121.78/6,183.07 = 1,200.11/x
  3. Step 3: Cross multiply
    4,121.78x = 6,183.07 × 1,200.11
  4. Step 4: Simplify right side
    4,121.78x = 7,420,330.22
  5. Step 5: Solve for x
    x = 7,420,330.22/4,121.78
  6. Step 6: Final answer
    x = 1,800.28

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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.