Home / 5,183.92-7,778.16-2,108.08

Finding the Fourth Proportional to 5,183.92, 7,778.16 and 2,108.08

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Solution

The fourth proportional to 5,183.92, 7,778.16 and 2,108.08 is: 3,163.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,183.92 : 7,778.16 = 2,108.08 : x
  2. Step 2: Convert to fraction form
    5,183.92/7,778.16 = 2,108.08/x
  3. Step 3: Cross multiply
    5,183.92x = 7,778.16 × 2,108.08
  4. Step 4: Simplify right side
    5,183.92x = 16,396,983.53
  5. Step 5: Solve for x
    x = 16,396,983.53/5,183.92
  6. Step 6: Final answer
    x = 3,163.05

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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.