Home / 4,251.19-6,378.32-2,171.71

Finding the Fourth Proportional to 4,251.19, 6,378.32 and 2,171.71

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Solution

The fourth proportional to 4,251.19, 6,378.32 and 2,171.71 is: 3,258.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,251.19 : 6,378.32 = 2,171.71 : x
  2. Step 2: Convert to fraction form
    4,251.19/6,378.32 = 2,171.71/x
  3. Step 3: Cross multiply
    4,251.19x = 6,378.32 × 2,171.71
  4. Step 4: Simplify right side
    4,251.19x = 13,851,861.33
  5. Step 5: Solve for x
    x = 13,851,861.33/4,251.19
  6. Step 6: Final answer
    x = 3,258.35

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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.