Home / 3,803.75-5,249.18-2,147.75

Finding the Fourth Proportional to 3,803.75, 5,249.18 and 2,147.75

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Solution

The fourth proportional to 3,803.75, 5,249.18 and 2,147.75 is: 2,963.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,803.75 : 5,249.18 = 2,147.75 : x
  2. Step 2: Convert to fraction form
    3,803.75/5,249.18 = 2,147.75/x
  3. Step 3: Cross multiply
    3,803.75x = 5,249.18 × 2,147.75
  4. Step 4: Simplify right side
    3,803.75x = 11,273,926.35
  5. Step 5: Solve for x
    x = 11,273,926.35/3,803.75
  6. Step 6: Final answer
    x = 2,963.90

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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.