Home / 3,589.32-5,388.30-2,137.80

Finding the Fourth Proportional to 3,589.32, 5,388.30 and 2,137.80

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Solution

The fourth proportional to 3,589.32, 5,388.30 and 2,137.80 is: 3,209.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,589.32 : 5,388.30 = 2,137.80 : x
  2. Step 2: Convert to fraction form
    3,589.32/5,388.30 = 2,137.80/x
  3. Step 3: Cross multiply
    3,589.32x = 5,388.30 × 2,137.80
  4. Step 4: Simplify right side
    3,589.32x = 11,519,107.74
  5. Step 5: Solve for x
    x = 11,519,107.74/3,589.32
  6. Step 6: Final answer
    x = 3,209.27

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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.