Home / 2,118.20-3,171.44-1,596.62

Finding the Fourth Proportional to 2,118.20, 3,171.44 and 1,596.62

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Solution

The fourth proportional to 2,118.20, 3,171.44 and 1,596.62 is: 2,390.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,118.20 : 3,171.44 = 1,596.62 : x
  2. Step 2: Convert to fraction form
    2,118.20/3,171.44 = 1,596.62/x
  3. Step 3: Cross multiply
    2,118.20x = 3,171.44 × 1,596.62
  4. Step 4: Simplify right side
    2,118.20x = 5,063,584.48
  5. Step 5: Solve for x
    x = 5,063,584.48/2,118.20
  6. Step 6: Final answer
    x = 2,390.51

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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.