Home / 5,082.12-7,620.75-2,158.83

Finding the Fourth Proportional to 5,082.12, 7,620.75 and 2,158.83

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Solution

The fourth proportional to 5,082.12, 7,620.75 and 2,158.83 is: 3,237.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,082.12 : 7,620.75 = 2,158.83 : x
  2. Step 2: Convert to fraction form
    5,082.12/7,620.75 = 2,158.83/x
  3. Step 3: Cross multiply
    5,082.12x = 7,620.75 × 2,158.83
  4. Step 4: Simplify right side
    5,082.12x = 16,451,903.72
  5. Step 5: Solve for x
    x = 16,451,903.72/5,082.12
  6. Step 6: Final answer
    x = 3,237.21

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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.