Home / 2,209.92-3,310.08-2,148.48

Finding the Fourth Proportional to 2,209.92, 3,310.08 and 2,148.48

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Solution

The fourth proportional to 2,209.92, 3,310.08 and 2,148.48 is: 3,218.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,209.92 : 3,310.08 = 2,148.48 : x
  2. Step 2: Convert to fraction form
    2,209.92/3,310.08 = 2,148.48/x
  3. Step 3: Cross multiply
    2,209.92x = 3,310.08 × 2,148.48
  4. Step 4: Simplify right side
    2,209.92x = 7,111,640.68
  5. Step 5: Solve for x
    x = 7,111,640.68/2,209.92
  6. Step 6: Final answer
    x = 3,218.05

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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.