Home / 3,982.08-5,972.64-1,789.56

Finding the Fourth Proportional to 3,982.08, 5,972.64 and 1,789.56

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Solution

The fourth proportional to 3,982.08, 5,972.64 and 1,789.56 is: 2,684.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,982.08 : 5,972.64 = 1,789.56 : x
  2. Step 2: Convert to fraction form
    3,982.08/5,972.64 = 1,789.56/x
  3. Step 3: Cross multiply
    3,982.08x = 5,972.64 × 1,789.56
  4. Step 4: Simplify right side
    3,982.08x = 10,688,397.64
  5. Step 5: Solve for x
    x = 10,688,397.64/3,982.08
  6. Step 6: Final answer
    x = 2,684.12

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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.