Home / 3,803.82-5,249.21-2,125.25

Finding the Fourth Proportional to 3,803.82, 5,249.21 and 2,125.25

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Solution

The fourth proportional to 3,803.82, 5,249.21 and 2,125.25 is: 2,932.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,803.82 : 5,249.21 = 2,125.25 : x
  2. Step 2: Convert to fraction form
    3,803.82/5,249.21 = 2,125.25/x
  3. Step 3: Cross multiply
    3,803.82x = 5,249.21 × 2,125.25
  4. Step 4: Simplify right side
    3,803.82x = 11,155,883.55
  5. Step 5: Solve for x
    x = 11,155,883.55/3,803.82
  6. Step 6: Final answer
    x = 2,932.81

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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.