Home / 2,286.12-3,155.04-1,912.44

Finding the Fourth Proportional to 2,286.12, 3,155.04 and 1,912.44

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Solution

The fourth proportional to 2,286.12, 3,155.04 and 1,912.44 is: 2,639.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,286.12 : 3,155.04 = 1,912.44 : x
  2. Step 2: Convert to fraction form
    2,286.12/3,155.04 = 1,912.44/x
  3. Step 3: Cross multiply
    2,286.12x = 3,155.04 × 1,912.44
  4. Step 4: Simplify right side
    2,286.12x = 6,033,824.70
  5. Step 5: Solve for x
    x = 6,033,824.70/2,286.12
  6. Step 6: Final answer
    x = 2,639.33

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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.