Home / 4,255.73-6,379.20-3,082.78

Finding the Fourth Proportional to 4,255.73, 6,379.20 and 3,082.78

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Solution

The fourth proportional to 4,255.73, 6,379.20 and 3,082.78 is: 4,620.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,255.73 : 6,379.20 = 3,082.78 : x
  2. Step 2: Convert to fraction form
    4,255.73/6,379.20 = 3,082.78/x
  3. Step 3: Cross multiply
    4,255.73x = 6,379.20 × 3,082.78
  4. Step 4: Simplify right side
    4,255.73x = 19,665,622.87
  5. Step 5: Solve for x
    x = 19,665,622.87/4,255.73
  6. Step 6: Final answer
    x = 4,620.98

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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.