Home / 5,251.75-7,873.70-3,171.32

Finding the Fourth Proportional to 5,251.75, 7,873.70 and 3,171.32

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Solution

The fourth proportional to 5,251.75, 7,873.70 and 3,171.32 is: 4,754.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,251.75 : 7,873.70 = 3,171.32 : x
  2. Step 2: Convert to fraction form
    5,251.75/7,873.70 = 3,171.32/x
  3. Step 3: Cross multiply
    5,251.75x = 7,873.70 × 3,171.32
  4. Step 4: Simplify right side
    5,251.75x = 24,969,996.59
  5. Step 5: Solve for x
    x = 24,969,996.59/5,251.75
  6. Step 6: Final answer
    x = 4,754.60

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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.