Home / 4,122.10-6,183.15-2,278.90

Finding the Fourth Proportional to 4,122.10, 6,183.15 and 2,278.90

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Solution

The fourth proportional to 4,122.10, 6,183.15 and 2,278.90 is: 3,418.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,122.10 : 6,183.15 = 2,278.90 : x
  2. Step 2: Convert to fraction form
    4,122.10/6,183.15 = 2,278.90/x
  3. Step 3: Cross multiply
    4,122.10x = 6,183.15 × 2,278.90
  4. Step 4: Simplify right side
    4,122.10x = 14,090,780.54
  5. Step 5: Solve for x
    x = 14,090,780.54/4,122.10
  6. Step 6: Final answer
    x = 3,418.35

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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.