Home / 3,222.78-4,447.38-1,806.52

Finding the Fourth Proportional to 3,222.78, 4,447.38 and 1,806.52

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Solution

The fourth proportional to 3,222.78, 4,447.38 and 1,806.52 is: 2,492.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,222.78 : 4,447.38 = 1,806.52 : x
  2. Step 2: Convert to fraction form
    3,222.78/4,447.38 = 1,806.52/x
  3. Step 3: Cross multiply
    3,222.78x = 4,447.38 × 1,806.52
  4. Step 4: Simplify right side
    3,222.78x = 8,034,280.92
  5. Step 5: Solve for x
    x = 8,034,280.92/3,222.78
  6. Step 6: Final answer
    x = 2,492.97

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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.