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Finding the Fourth Proportional to 2,758.34, 4,137.51 and 1,940.28

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Solution

The fourth proportional to 2,758.34, 4,137.51 and 1,940.28 is: 2,910.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,758.34 : 4,137.51 = 1,940.28 : x
  2. Step 2: Convert to fraction form
    2,758.34/4,137.51 = 1,940.28/x
  3. Step 3: Cross multiply
    2,758.34x = 4,137.51 × 1,940.28
  4. Step 4: Simplify right side
    2,758.34x = 8,027,919.66
  5. Step 5: Solve for x
    x = 8,027,919.66/2,758.34
  6. Step 6: Final answer
    x = 2,910.41

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1.5x scale

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.