Home / 3,930.02-5,897.31-1,982.37

Finding the Fourth Proportional to 3,930.02, 5,897.31 and 1,982.37

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Solution

The fourth proportional to 3,930.02, 5,897.31 and 1,982.37 is: 2,974.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,930.02 : 5,897.31 = 1,982.37 : x
  2. Step 2: Convert to fraction form
    3,930.02/5,897.31 = 1,982.37/x
  3. Step 3: Cross multiply
    3,930.02x = 5,897.31 × 1,982.37
  4. Step 4: Simplify right side
    3,930.02x = 11,690,665.11
  5. Step 5: Solve for x
    x = 11,690,665.11/3,930.02
  6. Step 6: Final answer
    x = 2,974.71

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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.