Home / 3,982.30-5,971.83-1,790.44

Finding the Fourth Proportional to 3,982.30, 5,971.83 and 1,790.44

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Solution

The fourth proportional to 3,982.30, 5,971.83 and 1,790.44 is: 2,684.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,982.30 : 5,971.83 = 1,790.44 : x
  2. Step 2: Convert to fraction form
    3,982.30/5,971.83 = 1,790.44/x
  3. Step 3: Cross multiply
    3,982.30x = 5,971.83 × 1,790.44
  4. Step 4: Simplify right side
    3,982.30x = 10,692,203.31
  5. Step 5: Solve for x
    x = 10,692,203.31/3,982.30
  6. Step 6: Final answer
    x = 2,684.93

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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.