Home / 2,286.75-3,153.89-1,578.44

Finding the Fourth Proportional to 2,286.75, 3,153.89 and 1,578.44

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Solution

The fourth proportional to 2,286.75, 3,153.89 and 1,578.44 is: 2,176.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,286.75 : 3,153.89 = 1,578.44 : x
  2. Step 2: Convert to fraction form
    2,286.75/3,153.89 = 1,578.44/x
  3. Step 3: Cross multiply
    2,286.75x = 3,153.89 × 1,578.44
  4. Step 4: Simplify right side
    2,286.75x = 4,978,202.47
  5. Step 5: Solve for x
    x = 4,978,202.47/2,286.75
  6. Step 6: Final answer
    x = 2,176.98

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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.