Home / 4,122.10-6,183.75-1,200.02

Finding the Fourth Proportional to 4,122.10, 6,183.75 and 1,200.02

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Solution

The fourth proportional to 4,122.10, 6,183.75 and 1,200.02 is: 1,800.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,122.10 : 6,183.75 = 1,200.02 : x
  2. Step 2: Convert to fraction form
    4,122.10/6,183.75 = 1,200.02/x
  3. Step 3: Cross multiply
    4,122.10x = 6,183.75 × 1,200.02
  4. Step 4: Simplify right side
    4,122.10x = 7,420,623.68
  5. Step 5: Solve for x
    x = 7,420,623.68/4,122.10
  6. Step 6: Final answer
    x = 1,800.20

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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.