Home / 2,212.36-3,314.27-1,239.14

Finding the Fourth Proportional to 2,212.36, 3,314.27 and 1,239.14

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Solution

The fourth proportional to 2,212.36, 3,314.27 and 1,239.14 is: 1,856.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212.36 : 3,314.27 = 1,239.14 : x
  2. Step 2: Convert to fraction form
    2,212.36/3,314.27 = 1,239.14/x
  3. Step 3: Cross multiply
    2,212.36x = 3,314.27 × 1,239.14
  4. Step 4: Simplify right side
    2,212.36x = 4,106,855.91
  5. Step 5: Solve for x
    x = 4,106,855.91/2,212.36
  6. Step 6: Final answer
    x = 1,856.33

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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.