Home / 4,801.43-7,198.78-2,131.57

Finding the Fourth Proportional to 4,801.43, 7,198.78 and 2,131.57

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Solution

The fourth proportional to 4,801.43, 7,198.78 and 2,131.57 is: 3,195.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,801.43 : 7,198.78 = 2,131.57 : x
  2. Step 2: Convert to fraction form
    4,801.43/7,198.78 = 2,131.57/x
  3. Step 3: Cross multiply
    4,801.43x = 7,198.78 × 2,131.57
  4. Step 4: Simplify right side
    4,801.43x = 15,344,672.16
  5. Step 5: Solve for x
    x = 15,344,672.16/4,801.43
  6. Step 6: Final answer
    x = 3,195.85

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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.