Home / 3,222.18-4,450.95-2,431.49

Finding the Fourth Proportional to 3,222.18, 4,450.95 and 2,431.49

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Solution

The fourth proportional to 3,222.18, 4,450.95 and 2,431.49 is: 3,358.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,222.18 : 4,450.95 = 2,431.49 : x
  2. Step 2: Convert to fraction form
    3,222.18/4,450.95 = 2,431.49/x
  3. Step 3: Cross multiply
    3,222.18x = 4,450.95 × 2,431.49
  4. Step 4: Simplify right side
    3,222.18x = 10,822,418.16
  5. Step 5: Solve for x
    x = 10,822,418.16/3,222.18
  6. Step 6: Final answer
    x = 3,358.73

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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.