Home / 3,987,908.53-5,503,285.78-2,177,072.53

Finding the Fourth Proportional to 3,987,908.53, 5,503,285.78 and 2,177,072.53

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Solution

The fourth proportional to 3,987,908.53, 5,503,285.78 and 2,177,072.53 is: 3,004,344.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,987,908.53 : 5,503,285.78 = 2,177,072.53 : x
  2. Step 2: Convert to fraction form
    3,987,908.53/5,503,285.78 = 2,177,072.53/x
  3. Step 3: Cross multiply
    3,987,908.53x = 5,503,285.78 × 2,177,072.53
  4. Step 4: Simplify right side
    3,987,908.53x = 11,981,052,310,135.84
  5. Step 5: Solve for x
    x = 11,981,052,310,135.84/3,987,908.53
  6. Step 6: Final answer
    x = 3,004,344.81

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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.