Home / 3,538.82-5,305.20-1,977.55

Finding the Fourth Proportional to 3,538.82, 5,305.20 and 1,977.55

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Solution

The fourth proportional to 3,538.82, 5,305.20 and 1,977.55 is: 2,964.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,538.82 : 5,305.20 = 1,977.55 : x
  2. Step 2: Convert to fraction form
    3,538.82/5,305.20 = 1,977.55/x
  3. Step 3: Cross multiply
    3,538.82x = 5,305.20 × 1,977.55
  4. Step 4: Simplify right side
    3,538.82x = 10,491,277.58
  5. Step 5: Solve for x
    x = 10,491,277.58/3,538.82
  6. Step 6: Final answer
    x = 2,964.62

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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.