Home / 10,640.88-15,961.68-2,849.64

Finding the Fourth Proportional to 10,640.88, 15,961.68 and 2,849.64

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Solution

The fourth proportional to 10,640.88, 15,961.68 and 2,849.64 is: 4,274.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,640.88 : 15,961.68 = 2,849.64 : x
  2. Step 2: Convert to fraction form
    10,640.88/15,961.68 = 2,849.64/x
  3. Step 3: Cross multiply
    10,640.88x = 15,961.68 × 2,849.64
  4. Step 4: Simplify right side
    10,640.88x = 45,485,041.80
  5. Step 5: Solve for x
    x = 45,485,041.80/10,640.88
  6. Step 6: Final answer
    x = 4,274.56

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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.