Home / 3,540.16-5,309.84-943.28

Finding the Fourth Proportional to 3,540.16, 5,309.84 and 943.28

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Solution

The fourth proportional to 3,540.16, 5,309.84 and 943.28 is: 1,414.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,540.16 : 5,309.84 = 943.28 : x
  2. Step 2: Convert to fraction form
    3,540.16/5,309.84 = 943.28/x
  3. Step 3: Cross multiply
    3,540.16x = 5,309.84 × 943.28
  4. Step 4: Simplify right side
    3,540.16x = 5,008,665.88
  5. Step 5: Solve for x
    x = 5,008,665.88/3,540.16
  6. Step 6: Final answer
    x = 1,414.81

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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.