Home / 2,214.45-3,321.75-2,108.04

Finding the Fourth Proportional to 2,214.45, 3,321.75 and 2,108.04

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Solution

The fourth proportional to 2,214.45, 3,321.75 and 2,108.04 is: 3,162.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,214.45 : 3,321.75 = 2,108.04 : x
  2. Step 2: Convert to fraction form
    2,214.45/3,321.75 = 2,108.04/x
  3. Step 3: Cross multiply
    2,214.45x = 3,321.75 × 2,108.04
  4. Step 4: Simplify right side
    2,214.45x = 7,002,381.87
  5. Step 5: Solve for x
    x = 7,002,381.87/2,214.45
  6. Step 6: Final answer
    x = 3,162.13

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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.