Home / 3,087.92-4,629.45-2,209.78

Finding the Fourth Proportional to 3,087.92, 4,629.45 and 2,209.78

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Solution

The fourth proportional to 3,087.92, 4,629.45 and 2,209.78 is: 3,312.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,087.92 : 4,629.45 = 2,209.78 : x
  2. Step 2: Convert to fraction form
    3,087.92/4,629.45 = 2,209.78/x
  3. Step 3: Cross multiply
    3,087.92x = 4,629.45 × 2,209.78
  4. Step 4: Simplify right side
    3,087.92x = 10,230,080.09
  5. Step 5: Solve for x
    x = 10,230,080.09/3,087.92
  6. Step 6: Final answer
    x = 3,312.93

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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.