Home / 3,571.88-5,357.86-1,231.78

Finding the Fourth Proportional to 3,571.88, 5,357.86 and 1,231.78

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Solution

The fourth proportional to 3,571.88, 5,357.86 and 1,231.78 is: 1,847.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,571.88 : 5,357.86 = 1,231.78 : x
  2. Step 2: Convert to fraction form
    3,571.88/5,357.86 = 1,231.78/x
  3. Step 3: Cross multiply
    3,571.88x = 5,357.86 × 1,231.78
  4. Step 4: Simplify right side
    3,571.88x = 6,599,704.79
  5. Step 5: Solve for x
    x = 6,599,704.79/3,571.88
  6. Step 6: Final answer
    x = 1,847.68

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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.