Home / 2,080.22-3,121.14-619.39

Finding the Fourth Proportional to 2,080.22, 3,121.14 and 619.39

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Solution

The fourth proportional to 2,080.22, 3,121.14 and 619.39 is: 929.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,080.22 : 3,121.14 = 619.39 : x
  2. Step 2: Convert to fraction form
    2,080.22/3,121.14 = 619.39/x
  3. Step 3: Cross multiply
    2,080.22x = 3,121.14 × 619.39
  4. Step 4: Simplify right side
    2,080.22x = 1,933,202.90
  5. Step 5: Solve for x
    x = 1,933,202.90/2,080.22
  6. Step 6: Final answer
    x = 929.33

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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.