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Finding the Fourth Proportional to 3,578.73, 4,936.98 and 2,319.99

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Solution

The fourth proportional to 3,578.73, 4,936.98 and 2,319.99 is: 3,200.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,578.73 : 4,936.98 = 2,319.99 : x
  2. Step 2: Convert to fraction form
    3,578.73/4,936.98 = 2,319.99/x
  3. Step 3: Cross multiply
    3,578.73x = 4,936.98 × 2,319.99
  4. Step 4: Simplify right side
    3,578.73x = 11,453,734.42
  5. Step 5: Solve for x
    x = 11,453,734.42/3,578.73
  6. Step 6: Final answer
    x = 3,200.51

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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.