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Finding the Fourth Proportional to 7,324.38, 10,984.29 and 2,643.78

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Solution

The fourth proportional to 7,324.38, 10,984.29 and 2,643.78 is: 3,964.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,324.38 : 10,984.29 = 2,643.78 : x
  2. Step 2: Convert to fraction form
    7,324.38/10,984.29 = 2,643.78/x
  3. Step 3: Cross multiply
    7,324.38x = 10,984.29 × 2,643.78
  4. Step 4: Simplify right side
    7,324.38x = 29,040,077.49
  5. Step 5: Solve for x
    x = 29,040,077.49/7,324.38
  6. Step 6: Final answer
    x = 3,964.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.