Home / 3,905.82-5,855.99-1,956.65

Finding the Fourth Proportional to 3,905.82, 5,855.99 and 1,956.65

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Solution

The fourth proportional to 3,905.82, 5,855.99 and 1,956.65 is: 2,933.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,905.82 : 5,855.99 = 1,956.65 : x
  2. Step 2: Convert to fraction form
    3,905.82/5,855.99 = 1,956.65/x
  3. Step 3: Cross multiply
    3,905.82x = 5,855.99 × 1,956.65
  4. Step 4: Simplify right side
    3,905.82x = 11,458,083.77
  5. Step 5: Solve for x
    x = 11,458,083.77/3,905.82
  6. Step 6: Final answer
    x = 2,933.59

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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.