Home / 3,811.38-5,258.16-2,318.10

Finding the Fourth Proportional to 3,811.38, 5,258.16 and 2,318.10

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Solution

The fourth proportional to 3,811.38, 5,258.16 and 2,318.10 is: 3,198.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.38 : 5,258.16 = 2,318.10 : x
  2. Step 2: Convert to fraction form
    3,811.38/5,258.16 = 2,318.10/x
  3. Step 3: Cross multiply
    3,811.38x = 5,258.16 × 2,318.10
  4. Step 4: Simplify right side
    3,811.38x = 12,188,940.70
  5. Step 5: Solve for x
    x = 12,188,940.70/3,811.38
  6. Step 6: Final answer
    x = 3,198.04

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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.