Home / 3,885.80-5,822.22-2,729.48

Finding the Fourth Proportional to 3,885.80, 5,822.22 and 2,729.48

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Solution

The fourth proportional to 3,885.80, 5,822.22 and 2,729.48 is: 4,089.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,885.80 : 5,822.22 = 2,729.48 : x
  2. Step 2: Convert to fraction form
    3,885.80/5,822.22 = 2,729.48/x
  3. Step 3: Cross multiply
    3,885.80x = 5,822.22 × 2,729.48
  4. Step 4: Simplify right side
    3,885.80x = 15,891,633.05
  5. Step 5: Solve for x
    x = 15,891,633.05/3,885.80
  6. Step 6: Final answer
    x = 4,089.67

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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.