Home / 3,849.72-5,768.88-3,161.22

Finding the Fourth Proportional to 3,849.72, 5,768.88 and 3,161.22

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Solution

The fourth proportional to 3,849.72, 5,768.88 and 3,161.22 is: 4,737.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,849.72 : 5,768.88 = 3,161.22 : x
  2. Step 2: Convert to fraction form
    3,849.72/5,768.88 = 3,161.22/x
  3. Step 3: Cross multiply
    3,849.72x = 5,768.88 × 3,161.22
  4. Step 4: Simplify right side
    3,849.72x = 18,236,698.83
  5. Step 5: Solve for x
    x = 18,236,698.83/3,849.72
  6. Step 6: Final answer
    x = 4,737.15

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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.