Home / 2,691.44-4,037.60-936.64

Finding the Fourth Proportional to 2,691.44, 4,037.60 and 936.64

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Solution

The fourth proportional to 2,691.44, 4,037.60 and 936.64 is: 1,405.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,691.44 : 4,037.60 = 936.64 : x
  2. Step 2: Convert to fraction form
    2,691.44/4,037.60 = 936.64/x
  3. Step 3: Cross multiply
    2,691.44x = 4,037.60 × 936.64
  4. Step 4: Simplify right side
    2,691.44x = 3,781,777.66
  5. Step 5: Solve for x
    x = 3,781,777.66/2,691.44
  6. Step 6: Final answer
    x = 1,405.11

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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.