Home / 3,824.20-5,277.48-2,145.73

Finding the Fourth Proportional to 3,824.20, 5,277.48 and 2,145.73

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Solution

The fourth proportional to 3,824.20, 5,277.48 and 2,145.73 is: 2,961.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,824.20 : 5,277.48 = 2,145.73 : x
  2. Step 2: Convert to fraction form
    3,824.20/5,277.48 = 2,145.73/x
  3. Step 3: Cross multiply
    3,824.20x = 5,277.48 × 2,145.73
  4. Step 4: Simplify right side
    3,824.20x = 11,324,039.84
  5. Step 5: Solve for x
    x = 11,324,039.84/3,824.20
  6. Step 6: Final answer
    x = 2,961.15

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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.