Home / 2,080.26-3,121.16-984.80

Finding the Fourth Proportional to 2,080.26, 3,121.16 and 984.80

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Solution

The fourth proportional to 2,080.26, 3,121.16 and 984.80 is: 1,477.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,080.26 : 3,121.16 = 984.80 : x
  2. Step 2: Convert to fraction form
    2,080.26/3,121.16 = 984.80/x
  3. Step 3: Cross multiply
    2,080.26x = 3,121.16 × 984.80
  4. Step 4: Simplify right side
    2,080.26x = 3,073,697.84
  5. Step 5: Solve for x
    x = 3,073,697.84/2,080.26
  6. Step 6: Final answer
    x = 1,477.55

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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.