Home / 2,080.20-3,120.30-1,806.83

Finding the Fourth Proportional to 2,080.20, 3,120.30 and 1,806.83

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Solution

The fourth proportional to 2,080.20, 3,120.30 and 1,806.83 is: 2,710.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,080.20 : 3,120.30 = 1,806.83 : x
  2. Step 2: Convert to fraction form
    2,080.20/3,120.30 = 1,806.83/x
  3. Step 3: Cross multiply
    2,080.20x = 3,120.30 × 1,806.83
  4. Step 4: Simplify right side
    2,080.20x = 5,637,836.05
  5. Step 5: Solve for x
    x = 5,637,836.05/2,080.20
  6. Step 6: Final answer
    x = 2,710.24

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.