Home / 3,530.30-5,284.92-2,139.44

Finding the Fourth Proportional to 3,530.30, 5,284.92 and 2,139.44

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Solution

The fourth proportional to 3,530.30, 5,284.92 and 2,139.44 is: 3,202.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,530.30 : 5,284.92 = 2,139.44 : x
  2. Step 2: Convert to fraction form
    3,530.30/5,284.92 = 2,139.44/x
  3. Step 3: Cross multiply
    3,530.30x = 5,284.92 × 2,139.44
  4. Step 4: Simplify right side
    3,530.30x = 11,306,769.24
  5. Step 5: Solve for x
    x = 11,306,769.24/3,530.30
  6. Step 6: Final answer
    x = 3,202.78

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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.