Home / 2,738.45-4,107.64-1,257.25

Finding the Fourth Proportional to 2,738.45, 4,107.64 and 1,257.25

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Solution

The fourth proportional to 2,738.45, 4,107.64 and 1,257.25 is: 1,885.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,738.45 : 4,107.64 = 1,257.25 : x
  2. Step 2: Convert to fraction form
    2,738.45/4,107.64 = 1,257.25/x
  3. Step 3: Cross multiply
    2,738.45x = 4,107.64 × 1,257.25
  4. Step 4: Simplify right side
    2,738.45x = 5,164,330.39
  5. Step 5: Solve for x
    x = 5,164,330.39/2,738.45
  6. Step 6: Final answer
    x = 1,885.86

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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.