Home / 3,803.81-5,249.34-2,125.17

Finding the Fourth Proportional to 3,803.81, 5,249.34 and 2,125.17

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Solution

The fourth proportional to 3,803.81, 5,249.34 and 2,125.17 is: 2,932.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,803.81 : 5,249.34 = 2,125.17 : x
  2. Step 2: Convert to fraction form
    3,803.81/5,249.34 = 2,125.17/x
  3. Step 3: Cross multiply
    3,803.81x = 5,249.34 × 2,125.17
  4. Step 4: Simplify right side
    3,803.81x = 11,155,739.89
  5. Step 5: Solve for x
    x = 11,155,739.89/3,803.81
  6. Step 6: Final answer
    x = 2,932.78

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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.