Home / 3,185.85-4,396-1,788.33

Finding the Fourth Proportional to 3,185.85, 4,396 and 1,788.33

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Solution

The fourth proportional to 3,185.85, 4,396 and 1,788.33 is: 2,467.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,185.85 : 4,396 = 1,788.33 : x
  2. Step 2: Convert to fraction form
    3,185.85/4,396 = 1,788.33/x
  3. Step 3: Cross multiply
    3,185.85x = 4,396 × 1,788.33
  4. Step 4: Simplify right side
    3,185.85x = 7,861,498.68
  5. Step 5: Solve for x
    x = 7,861,498.68/3,185.85
  6. Step 6: Final answer
    x = 2,467.63

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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.