Home / 3,912.45-5,400.95-2,498.05

Finding the Fourth Proportional to 3,912.45, 5,400.95 and 2,498.05

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Solution

The fourth proportional to 3,912.45, 5,400.95 and 2,498.05 is: 3,448.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,912.45 : 5,400.95 = 2,498.05 : x
  2. Step 2: Convert to fraction form
    3,912.45/5,400.95 = 2,498.05/x
  3. Step 3: Cross multiply
    3,912.45x = 5,400.95 × 2,498.05
  4. Step 4: Simplify right side
    3,912.45x = 13,491,843.15
  5. Step 5: Solve for x
    x = 13,491,843.15/3,912.45
  6. Step 6: Final answer
    x = 3,448.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.