Home / 3,855,728.69-5,777,907.29-2,147,518.88

Finding the Fourth Proportional to 3,855,728.69, 5,777,907.29 and 2,147,518.88

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Solution

The fourth proportional to 3,855,728.69, 5,777,907.29 and 2,147,518.88 is: 3,218,111.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,855,728.69 : 5,777,907.29 = 2,147,518.88 : x
  2. Step 2: Convert to fraction form
    3,855,728.69/5,777,907.29 = 2,147,518.88/x
  3. Step 3: Cross multiply
    3,855,728.69x = 5,777,907.29 × 2,147,518.88
  4. Step 4: Simplify right side
    3,855,728.69x = 12,408,164,982,257.85
  5. Step 5: Solve for x
    x = 12,408,164,982,257.85/3,855,728.69
  6. Step 6: Final answer
    x = 3,218,111.54

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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.