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Finding the Fourth Proportional to 2,863.52, 3,950.16 and 2,163.68

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Solution

The fourth proportional to 2,863.52, 3,950.16 and 2,163.68 is: 2,984.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,863.52 : 3,950.16 = 2,163.68 : x
  2. Step 2: Convert to fraction form
    2,863.52/3,950.16 = 2,163.68/x
  3. Step 3: Cross multiply
    2,863.52x = 3,950.16 × 2,163.68
  4. Step 4: Simplify right side
    2,863.52x = 8,546,882.19
  5. Step 5: Solve for x
    x = 8,546,882.19/2,863.52
  6. Step 6: Final answer
    x = 2,984.75

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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.