Home / 3,212.91-4,821.68-1,364.54

Finding the Fourth Proportional to 3,212.91, 4,821.68 and 1,364.54

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Solution

The fourth proportional to 3,212.91, 4,821.68 and 1,364.54 is: 2,047.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.91 : 4,821.68 = 1,364.54 : x
  2. Step 2: Convert to fraction form
    3,212.91/4,821.68 = 1,364.54/x
  3. Step 3: Cross multiply
    3,212.91x = 4,821.68 × 1,364.54
  4. Step 4: Simplify right side
    3,212.91x = 6,579,344.30
  5. Step 5: Solve for x
    x = 6,579,344.30/3,212.91
  6. Step 6: Final answer
    x = 2,047.78

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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.