Home / 7,913.75-11,872.22-3,531.21

Finding the Fourth Proportional to 7,913.75, 11,872.22 and 3,531.21

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Solution

The fourth proportional to 7,913.75, 11,872.22 and 3,531.21 is: 5,297.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,913.75 : 11,872.22 = 3,531.21 : x
  2. Step 2: Convert to fraction form
    7,913.75/11,872.22 = 3,531.21/x
  3. Step 3: Cross multiply
    7,913.75x = 11,872.22 × 3,531.21
  4. Step 4: Simplify right side
    7,913.75x = 41,923,301.99
  5. Step 5: Solve for x
    x = 41,923,301.99/7,913.75
  6. Step 6: Final answer
    x = 5,297.53

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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.