Home / 2,622.43-3,939.11-2,212.37

Finding the Fourth Proportional to 2,622.43, 3,939.11 and 2,212.37

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Solution

The fourth proportional to 2,622.43, 3,939.11 and 2,212.37 is: 3,323.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,622.43 : 3,939.11 = 2,212.37 : x
  2. Step 2: Convert to fraction form
    2,622.43/3,939.11 = 2,212.37/x
  3. Step 3: Cross multiply
    2,622.43x = 3,939.11 × 2,212.37
  4. Step 4: Simplify right side
    2,622.43x = 8,714,768.79
  5. Step 5: Solve for x
    x = 8,714,768.79/2,622.43
  6. Step 6: Final answer
    x = 3,323.17

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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.