Home / 5,183.96-7,778.24-2,718.20

Finding the Fourth Proportional to 5,183.96, 7,778.24 and 2,718.20

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Solution

The fourth proportional to 5,183.96, 7,778.24 and 2,718.20 is: 4,078.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,183.96 : 7,778.24 = 2,718.20 : x
  2. Step 2: Convert to fraction form
    5,183.96/7,778.24 = 2,718.20/x
  3. Step 3: Cross multiply
    5,183.96x = 7,778.24 × 2,718.20
  4. Step 4: Simplify right side
    5,183.96x = 21,142,811.97
  5. Step 5: Solve for x
    x = 21,142,811.97/5,183.96
  6. Step 6: Final answer
    x = 4,078.51

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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.