Home / 3,201.21-4,399.79-2,825.91

Finding the Fourth Proportional to 3,201.21, 4,399.79 and 2,825.91

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Solution

The fourth proportional to 3,201.21, 4,399.79 and 2,825.91 is: 3,883.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,201.21 : 4,399.79 = 2,825.91 : x
  2. Step 2: Convert to fraction form
    3,201.21/4,399.79 = 2,825.91/x
  3. Step 3: Cross multiply
    3,201.21x = 4,399.79 × 2,825.91
  4. Step 4: Simplify right side
    3,201.21x = 12,433,410.56
  5. Step 5: Solve for x
    x = 12,433,410.56/3,201.21
  6. Step 6: Final answer
    x = 3,883.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.