Home / 2,212.08-3,318.39-1,917.24

Finding the Fourth Proportional to 2,212.08, 3,318.39 and 1,917.24

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Solution

The fourth proportional to 2,212.08, 3,318.39 and 1,917.24 is: 2,876.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212.08 : 3,318.39 = 1,917.24 : x
  2. Step 2: Convert to fraction form
    2,212.08/3,318.39 = 1,917.24/x
  3. Step 3: Cross multiply
    2,212.08x = 3,318.39 × 1,917.24
  4. Step 4: Simplify right side
    2,212.08x = 6,362,150.04
  5. Step 5: Solve for x
    x = 6,362,150.04/2,212.08
  6. Step 6: Final answer
    x = 2,876.09

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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.