Home / 3,984.54-5,974.38-1,790.25

Finding the Fourth Proportional to 3,984.54, 5,974.38 and 1,790.25

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Solution

The fourth proportional to 3,984.54, 5,974.38 and 1,790.25 is: 2,684.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,984.54 : 5,974.38 = 1,790.25 : x
  2. Step 2: Convert to fraction form
    3,984.54/5,974.38 = 1,790.25/x
  3. Step 3: Cross multiply
    3,984.54x = 5,974.38 × 1,790.25
  4. Step 4: Simplify right side
    3,984.54x = 10,695,633.80
  5. Step 5: Solve for x
    x = 10,695,633.80/3,984.54
  6. Step 6: Final answer
    x = 2,684.28

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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.