Home / 4,082.60-6,121.13-2,620.96

Finding the Fourth Proportional to 4,082.60, 6,121.13 and 2,620.96

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Solution

The fourth proportional to 4,082.60, 6,121.13 and 2,620.96 is: 3,929.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,082.60 : 6,121.13 = 2,620.96 : x
  2. Step 2: Convert to fraction form
    4,082.60/6,121.13 = 2,620.96/x
  3. Step 3: Cross multiply
    4,082.60x = 6,121.13 × 2,620.96
  4. Step 4: Simplify right side
    4,082.60x = 16,043,208.48
  5. Step 5: Solve for x
    x = 16,043,208.48/4,082.60
  6. Step 6: Final answer
    x = 3,929.65

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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.