Home / 2,669.68-3,998.14-2,080.41

Finding the Fourth Proportional to 2,669.68, 3,998.14 and 2,080.41

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Solution

The fourth proportional to 2,669.68, 3,998.14 and 2,080.41 is: 3,115.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,669.68 : 3,998.14 = 2,080.41 : x
  2. Step 2: Convert to fraction form
    2,669.68/3,998.14 = 2,080.41/x
  3. Step 3: Cross multiply
    2,669.68x = 3,998.14 × 2,080.41
  4. Step 4: Simplify right side
    2,669.68x = 8,317,770.44
  5. Step 5: Solve for x
    x = 8,317,770.44/2,669.68
  6. Step 6: Final answer
    x = 3,115.64

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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.