Home / 3,974.56-5,957.46-2,121.07

Finding the Fourth Proportional to 3,974.56, 5,957.46 and 2,121.07

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Solution

The fourth proportional to 3,974.56, 5,957.46 and 2,121.07 is: 3,179.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,974.56 : 5,957.46 = 2,121.07 : x
  2. Step 2: Convert to fraction form
    3,974.56/5,957.46 = 2,121.07/x
  3. Step 3: Cross multiply
    3,974.56x = 5,957.46 × 2,121.07
  4. Step 4: Simplify right side
    3,974.56x = 12,636,189.68
  5. Step 5: Solve for x
    x = 12,636,189.68/3,974.56
  6. Step 6: Final answer
    x = 3,179.27

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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.