Home / 3,222.46-4,447.30-1,806.38

Finding the Fourth Proportional to 3,222.46, 4,447.30 and 1,806.38

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Solution

The fourth proportional to 3,222.46, 4,447.30 and 1,806.38 is: 2,492.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,222.46 : 4,447.30 = 1,806.38 : x
  2. Step 2: Convert to fraction form
    3,222.46/4,447.30 = 1,806.38/x
  3. Step 3: Cross multiply
    3,222.46x = 4,447.30 × 1,806.38
  4. Step 4: Simplify right side
    3,222.46x = 8,033,524.89
  5. Step 5: Solve for x
    x = 8,033,524.89/3,222.46
  6. Step 6: Final answer
    x = 2,492.98

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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.