Home / 2,560.20-3,840.54-2,122.44

Finding the Fourth Proportional to 2,560.20, 3,840.54 and 2,122.44

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Solution

The fourth proportional to 2,560.20, 3,840.54 and 2,122.44 is: 3,183.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,560.20 : 3,840.54 = 2,122.44 : x
  2. Step 2: Convert to fraction form
    2,560.20/3,840.54 = 2,122.44/x
  3. Step 3: Cross multiply
    2,560.20x = 3,840.54 × 2,122.44
  4. Step 4: Simplify right side
    2,560.20x = 8,151,315.72
  5. Step 5: Solve for x
    x = 8,151,315.72/2,560.20
  6. Step 6: Final answer
    x = 3,183.86

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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.