Home / 3,221.72-4,450.57-2,519.72

Finding the Fourth Proportional to 3,221.72, 4,450.57 and 2,519.72

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Solution

The fourth proportional to 3,221.72, 4,450.57 and 2,519.72 is: 3,480.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,221.72 : 4,450.57 = 2,519.72 : x
  2. Step 2: Convert to fraction form
    3,221.72/4,450.57 = 2,519.72/x
  3. Step 3: Cross multiply
    3,221.72x = 4,450.57 × 2,519.72
  4. Step 4: Simplify right side
    3,221.72x = 11,214,161.69
  5. Step 5: Solve for x
    x = 11,214,161.69/3,221.72
  6. Step 6: Final answer
    x = 3,480.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.