Home / 5,251.32-7,243.62-3,125.43

Finding the Fourth Proportional to 5,251.32, 7,243.62 and 3,125.43

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Solution

The fourth proportional to 5,251.32, 7,243.62 and 3,125.43 is: 4,311.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,251.32 : 7,243.62 = 3,125.43 : x
  2. Step 2: Convert to fraction form
    5,251.32/7,243.62 = 3,125.43/x
  3. Step 3: Cross multiply
    5,251.32x = 7,243.62 × 3,125.43
  4. Step 4: Simplify right side
    5,251.32x = 22,639,375.41
  5. Step 5: Solve for x
    x = 22,639,375.41/5,251.32
  6. Step 6: Final answer
    x = 4,311.18

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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.