Home / 3,976.73-5,489.94-2,803.04

Finding the Fourth Proportional to 3,976.73, 5,489.94 and 2,803.04

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Solution

The fourth proportional to 3,976.73, 5,489.94 and 2,803.04 is: 3,869.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,976.73 : 5,489.94 = 2,803.04 : x
  2. Step 2: Convert to fraction form
    3,976.73/5,489.94 = 2,803.04/x
  3. Step 3: Cross multiply
    3,976.73x = 5,489.94 × 2,803.04
  4. Step 4: Simplify right side
    3,976.73x = 15,388,525.07
  5. Step 5: Solve for x
    x = 15,388,525.07/3,976.73
  6. Step 6: Final answer
    x = 3,869.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.