Home / 2,212.62-3,320.43-914.08

Finding the Fourth Proportional to 2,212.62, 3,320.43 and 914.08

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Solution

The fourth proportional to 2,212.62, 3,320.43 and 914.08 is: 1,371.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212.62 : 3,320.43 = 914.08 : x
  2. Step 2: Convert to fraction form
    2,212.62/3,320.43 = 914.08/x
  3. Step 3: Cross multiply
    2,212.62x = 3,320.43 × 914.08
  4. Step 4: Simplify right side
    2,212.62x = 3,035,122.05
  5. Step 5: Solve for x
    x = 3,035,122.05/2,212.62
  6. Step 6: Final answer
    x = 1,371.74

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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.