Home / 3,922.88-5,885.76-2,828.48

Finding the Fourth Proportional to 3,922.88, 5,885.76 and 2,828.48

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Solution

The fourth proportional to 3,922.88, 5,885.76 and 2,828.48 is: 4,243.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,922.88 : 5,885.76 = 2,828.48 : x
  2. Step 2: Convert to fraction form
    3,922.88/5,885.76 = 2,828.48/x
  3. Step 3: Cross multiply
    3,922.88x = 5,885.76 × 2,828.48
  4. Step 4: Simplify right side
    3,922.88x = 16,647,754.44
  5. Step 5: Solve for x
    x = 16,647,754.44/3,922.88
  6. Step 6: Final answer
    x = 4,243.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.