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Finding the Fourth Proportional to 3,940.82, 5,900.80 and 2,378.73

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Solution

The fourth proportional to 3,940.82, 5,900.80 and 2,378.73 is: 3,561.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940.82 : 5,900.80 = 2,378.73 : x
  2. Step 2: Convert to fraction form
    3,940.82/5,900.80 = 2,378.73/x
  3. Step 3: Cross multiply
    3,940.82x = 5,900.80 × 2,378.73
  4. Step 4: Simplify right side
    3,940.82x = 14,036,406.95
  5. Step 5: Solve for x
    x = 14,036,406.95/3,940.82
  6. Step 6: Final answer
    x = 3,561.80

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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.