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Finding the Fourth Proportional to 4,940.97, 6,821.02 and 3,819.37

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Solution

The fourth proportional to 4,940.97, 6,821.02 and 3,819.37 is: 5,272.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,940.97 : 6,821.02 = 3,819.37 : x
  2. Step 2: Convert to fraction form
    4,940.97/6,821.02 = 3,819.37/x
  3. Step 3: Cross multiply
    4,940.97x = 6,821.02 × 3,819.37
  4. Step 4: Simplify right side
    4,940.97x = 26,051,999.16
  5. Step 5: Solve for x
    x = 26,051,999.16/4,940.97
  6. Step 6: Final answer
    x = 5,272.65

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1.5x scale

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.