Home / 3,222.60-4,447.05-1,806.42

Finding the Fourth Proportional to 3,222.60, 4,447.05 and 1,806.42

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Solution

The fourth proportional to 3,222.60, 4,447.05 and 1,806.42 is: 2,492.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,222.60 : 4,447.05 = 1,806.42 : x
  2. Step 2: Convert to fraction form
    3,222.60/4,447.05 = 1,806.42/x
  3. Step 3: Cross multiply
    3,222.60x = 4,447.05 × 1,806.42
  4. Step 4: Simplify right side
    3,222.60x = 8,033,240.06
  5. Step 5: Solve for x
    x = 8,033,240.06/3,222.60
  6. Step 6: Final answer
    x = 2,492.78

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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.