Home / 2,212.04-3,318.27-1,115.71

Finding the Fourth Proportional to 2,212.04, 3,318.27 and 1,115.71

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Solution

The fourth proportional to 2,212.04, 3,318.27 and 1,115.71 is: 1,673.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212.04 : 3,318.27 = 1,115.71 : x
  2. Step 2: Convert to fraction form
    2,212.04/3,318.27 = 1,115.71/x
  3. Step 3: Cross multiply
    2,212.04x = 3,318.27 × 1,115.71
  4. Step 4: Simplify right side
    2,212.04x = 3,702,214.54
  5. Step 5: Solve for x
    x = 3,702,214.54/2,212.04
  6. Step 6: Final answer
    x = 1,673.66

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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.