Home / 2,289.45-3,433.49-729.17

Finding the Fourth Proportional to 2,289.45, 3,433.49 and 729.17

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Solution

The fourth proportional to 2,289.45, 3,433.49 and 729.17 is: 1,093.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,289.45 : 3,433.49 = 729.17 : x
  2. Step 2: Convert to fraction form
    2,289.45/3,433.49 = 729.17/x
  3. Step 3: Cross multiply
    2,289.45x = 3,433.49 × 729.17
  4. Step 4: Simplify right side
    2,289.45x = 2,503,577.09
  5. Step 5: Solve for x
    x = 2,503,577.09/2,289.45
  6. Step 6: Final answer
    x = 1,093.53

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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.