Home / 3,220.75-4,819.38-2,752.57

Finding the Fourth Proportional to 3,220.75, 4,819.38 and 2,752.57

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Solution

The fourth proportional to 3,220.75, 4,819.38 and 2,752.57 is: 4,118.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.75 : 4,819.38 = 2,752.57 : x
  2. Step 2: Convert to fraction form
    3,220.75/4,819.38 = 2,752.57/x
  3. Step 3: Cross multiply
    3,220.75x = 4,819.38 × 2,752.57
  4. Step 4: Simplify right side
    3,220.75x = 13,265,680.81
  5. Step 5: Solve for x
    x = 13,265,680.81/3,220.75
  6. Step 6: Final answer
    x = 4,118.82

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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.