Home / 3,222.28-4,455.70-2,557.98

Finding the Fourth Proportional to 3,222.28, 4,455.70 and 2,557.98

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Solution

The fourth proportional to 3,222.28, 4,455.70 and 2,557.98 is: 3,537.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,222.28 : 4,455.70 = 2,557.98 : x
  2. Step 2: Convert to fraction form
    3,222.28/4,455.70 = 2,557.98/x
  3. Step 3: Cross multiply
    3,222.28x = 4,455.70 × 2,557.98
  4. Step 4: Simplify right side
    3,222.28x = 11,397,591.49
  5. Step 5: Solve for x
    x = 11,397,591.49/3,222.28
  6. Step 6: Final answer
    x = 3,537.12

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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.