Home / 3,520.98-5,286.65-1,964.03

Finding the Fourth Proportional to 3,520.98, 5,286.65 and 1,964.03

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Solution

The fourth proportional to 3,520.98, 5,286.65 and 1,964.03 is: 2,948.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.98 : 5,286.65 = 1,964.03 : x
  2. Step 2: Convert to fraction form
    3,520.98/5,286.65 = 1,964.03/x
  3. Step 3: Cross multiply
    3,520.98x = 5,286.65 × 1,964.03
  4. Step 4: Simplify right side
    3,520.98x = 10,383,102.95
  5. Step 5: Solve for x
    x = 10,383,102.95/3,520.98
  6. Step 6: Final answer
    x = 2,948.92

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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.