Home / 3,835.80-5,751.87-2,191.91

Finding the Fourth Proportional to 3,835.80, 5,751.87 and 2,191.91

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Solution

The fourth proportional to 3,835.80, 5,751.87 and 2,191.91 is: 3,286.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,835.80 : 5,751.87 = 2,191.91 : x
  2. Step 2: Convert to fraction form
    3,835.80/5,751.87 = 2,191.91/x
  3. Step 3: Cross multiply
    3,835.80x = 5,751.87 × 2,191.91
  4. Step 4: Simplify right side
    3,835.80x = 12,607,552.61
  5. Step 5: Solve for x
    x = 12,607,552.61/3,835.80
  6. Step 6: Final answer
    x = 3,286.81

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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.