Home / 5,738.45-7,919.39-3,220.43

Finding the Fourth Proportional to 5,738.45, 7,919.39 and 3,220.43

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Solution

The fourth proportional to 5,738.45, 7,919.39 and 3,220.43 is: 4,444.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,738.45 : 7,919.39 = 3,220.43 : x
  2. Step 2: Convert to fraction form
    5,738.45/7,919.39 = 3,220.43/x
  3. Step 3: Cross multiply
    5,738.45x = 7,919.39 × 3,220.43
  4. Step 4: Simplify right side
    5,738.45x = 25,503,825.04
  5. Step 5: Solve for x
    x = 25,503,825.04/5,738.45
  6. Step 6: Final answer
    x = 4,444.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.