Home / 3,571.42-5,357.50-1,231.12

Finding the Fourth Proportional to 3,571.42, 5,357.50 and 1,231.12

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Solution

The fourth proportional to 3,571.42, 5,357.50 and 1,231.12 is: 1,846.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,571.42 : 5,357.50 = 1,231.12 : x
  2. Step 2: Convert to fraction form
    3,571.42/5,357.50 = 1,231.12/x
  3. Step 3: Cross multiply
    3,571.42x = 5,357.50 × 1,231.12
  4. Step 4: Simplify right side
    3,571.42x = 6,595,725.40
  5. Step 5: Solve for x
    x = 6,595,725.40/3,571.42
  6. Step 6: Final answer
    x = 1,846.81

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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.