Home / 5,419.72-8,121.07-3,227.25

Finding the Fourth Proportional to 5,419.72, 8,121.07 and 3,227.25

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Solution

The fourth proportional to 5,419.72, 8,121.07 and 3,227.25 is: 4,835.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,419.72 : 8,121.07 = 3,227.25 : x
  2. Step 2: Convert to fraction form
    5,419.72/8,121.07 = 3,227.25/x
  3. Step 3: Cross multiply
    5,419.72x = 8,121.07 × 3,227.25
  4. Step 4: Simplify right side
    5,419.72x = 26,208,707.02
  5. Step 5: Solve for x
    x = 26,208,707.02/5,419.72
  6. Step 6: Final answer
    x = 4,835.81

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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.