Home / 5,128.52-7,694.19-2,167.29

Finding the Fourth Proportional to 5,128.52, 7,694.19 and 2,167.29

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Solution

The fourth proportional to 5,128.52, 7,694.19 and 2,167.29 is: 3,251.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,128.52 : 7,694.19 = 2,167.29 : x
  2. Step 2: Convert to fraction form
    5,128.52/7,694.19 = 2,167.29/x
  3. Step 3: Cross multiply
    5,128.52x = 7,694.19 × 2,167.29
  4. Step 4: Simplify right side
    5,128.52x = 16,675,541.05
  5. Step 5: Solve for x
    x = 16,675,541.05/5,128.52
  6. Step 6: Final answer
    x = 3,251.53

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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.