Home / 3,803.74-5,249.20-2,125.21

Finding the Fourth Proportional to 3,803.74, 5,249.20 and 2,125.21

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Solution

The fourth proportional to 3,803.74, 5,249.20 and 2,125.21 is: 2,932.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,803.74 : 5,249.20 = 2,125.21 : x
  2. Step 2: Convert to fraction form
    3,803.74/5,249.20 = 2,125.21/x
  3. Step 3: Cross multiply
    3,803.74x = 5,249.20 × 2,125.21
  4. Step 4: Simplify right side
    3,803.74x = 11,155,652.33
  5. Step 5: Solve for x
    x = 11,155,652.33/3,803.74
  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.