Home / 3,229.11-4,455.09-1,812.55

Finding the Fourth Proportional to 3,229.11, 4,455.09 and 1,812.55

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Solution

The fourth proportional to 3,229.11, 4,455.09 and 1,812.55 is: 2,500.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,229.11 : 4,455.09 = 1,812.55 : x
  2. Step 2: Convert to fraction form
    3,229.11/4,455.09 = 1,812.55/x
  3. Step 3: Cross multiply
    3,229.11x = 4,455.09 × 1,812.55
  4. Step 4: Simplify right side
    3,229.11x = 8,075,073.38
  5. Step 5: Solve for x
    x = 8,075,073.38/3,229.11
  6. Step 6: Final answer
    x = 2,500.71

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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.