Home / 3,388.74-4,676.55-1,896.65

Finding the Fourth Proportional to 3,388.74, 4,676.55 and 1,896.65

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Solution

The fourth proportional to 3,388.74, 4,676.55 and 1,896.65 is: 2,617.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,388.74 : 4,676.55 = 1,896.65 : x
  2. Step 2: Convert to fraction form
    3,388.74/4,676.55 = 1,896.65/x
  3. Step 3: Cross multiply
    3,388.74x = 4,676.55 × 1,896.65
  4. Step 4: Simplify right side
    3,388.74x = 8,869,745.69
  5. Step 5: Solve for x
    x = 8,869,745.69/3,388.74
  6. Step 6: Final answer
    x = 2,617.42

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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.