Home / 2,781.32-4,171.94-1,199.84

Finding the Fourth Proportional to 2,781.32, 4,171.94 and 1,199.84

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Solution

The fourth proportional to 2,781.32, 4,171.94 and 1,199.84 is: 1,799.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,781.32 : 4,171.94 = 1,199.84 : x
  2. Step 2: Convert to fraction form
    2,781.32/4,171.94 = 1,199.84/x
  3. Step 3: Cross multiply
    2,781.32x = 4,171.94 × 1,199.84
  4. Step 4: Simplify right side
    2,781.32x = 5,005,660.49
  5. Step 5: Solve for x
    x = 5,005,660.49/2,781.32
  6. Step 6: Final answer
    x = 1,799.74

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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.