Home / 3,578.30-4,936.85-2,321.00

Finding the Fourth Proportional to 3,578.30, 4,936.85 and 2,321.00

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Solution

The fourth proportional to 3,578.30, 4,936.85 and 2,321.00 is: 3,202.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,578.30 : 4,936.85 = 2,321.00 : x
  2. Step 2: Convert to fraction form
    3,578.30/4,936.85 = 2,321.00/x
  3. Step 3: Cross multiply
    3,578.30x = 4,936.85 × 2,321.00
  4. Step 4: Simplify right side
    3,578.30x = 11,458,392.56
  5. Step 5: Solve for x
    x = 11,458,392.56/3,578.30
  6. Step 6: Final answer
    x = 3,202.19

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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.