Home / 3,212.22-4,429.71-2,580.73

Finding the Fourth Proportional to 3,212.22, 4,429.71 and 2,580.73

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Solution

The fourth proportional to 3,212.22, 4,429.71 and 2,580.73 is: 3,558.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.22 : 4,429.71 = 2,580.73 : x
  2. Step 2: Convert to fraction form
    3,212.22/4,429.71 = 2,580.73/x
  3. Step 3: Cross multiply
    3,212.22x = 4,429.71 × 2,580.73
  4. Step 4: Simplify right side
    3,212.22x = 11,431,874.41
  5. Step 5: Solve for x
    x = 11,431,874.41/3,212.22
  6. Step 6: Final answer
    x = 3,558.87

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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.