Home / 3,222.80-4,447.08-1,806.56

Finding the Fourth Proportional to 3,222.80, 4,447.08 and 1,806.56

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Solution

The fourth proportional to 3,222.80, 4,447.08 and 1,806.56 is: 2,492.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,222.80 : 4,447.08 = 1,806.56 : x
  2. Step 2: Convert to fraction form
    3,222.80/4,447.08 = 1,806.56/x
  3. Step 3: Cross multiply
    3,222.80x = 4,447.08 × 1,806.56
  4. Step 4: Simplify right side
    3,222.80x = 8,033,916.84
  5. Step 5: Solve for x
    x = 8,033,916.84/3,222.80
  6. Step 6: Final answer
    x = 2,492.84

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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.