Home / 5,183.64-7,778.43-2,720.70

Finding the Fourth Proportional to 5,183.64, 7,778.43 and 2,720.70

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Solution

The fourth proportional to 5,183.64, 7,778.43 and 2,720.70 is: 4,082.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,183.64 : 7,778.43 = 2,720.70 : x
  2. Step 2: Convert to fraction form
    5,183.64/7,778.43 = 2,720.70/x
  3. Step 3: Cross multiply
    5,183.64x = 7,778.43 × 2,720.70
  4. Step 4: Simplify right side
    5,183.64x = 21,162,774.50
  5. Step 5: Solve for x
    x = 21,162,774.50/5,183.64
  6. Step 6: Final answer
    x = 4,082.61

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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.