Home / 3,213.86-4,815.90-2,388.26

Finding the Fourth Proportional to 3,213.86, 4,815.90 and 2,388.26

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Solution

The fourth proportional to 3,213.86, 4,815.90 and 2,388.26 is: 3,578.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213.86 : 4,815.90 = 2,388.26 : x
  2. Step 2: Convert to fraction form
    3,213.86/4,815.90 = 2,388.26/x
  3. Step 3: Cross multiply
    3,213.86x = 4,815.90 × 2,388.26
  4. Step 4: Simplify right side
    3,213.86x = 11,501,621.33
  5. Step 5: Solve for x
    x = 11,501,621.33/3,213.86
  6. Step 6: Final answer
    x = 3,578.76

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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.