Home / 3,942,135-5,440,147.52-2,131,299

Finding the Fourth Proportional to 3,942,135, 5,440,147.52 and 2,131,299

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Solution

The fourth proportional to 3,942,135, 5,440,147.52 and 2,131,299 is: 2,941,193.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942,135 : 5,440,147.52 = 2,131,299 : x
  2. Step 2: Convert to fraction form
    3,942,135/5,440,147.52 = 2,131,299/x
  3. Step 3: Cross multiply
    3,942,135x = 5,440,147.52 × 2,131,299
  4. Step 4: Simplify right side
    3,942,135x = 11,594,580,958,571.98
  5. Step 5: Solve for x
    x = 11,594,580,958,571.98/3,942,135
  6. Step 6: Final answer
    x = 2,941,193.28

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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.