Home / 2,836.86-3,914.82-1,577.88

Finding the Fourth Proportional to 2,836.86, 3,914.82 and 1,577.88

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Solution

The fourth proportional to 2,836.86, 3,914.82 and 1,577.88 is: 2,177.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,836.86 : 3,914.82 = 1,577.88 : x
  2. Step 2: Convert to fraction form
    2,836.86/3,914.82 = 1,577.88/x
  3. Step 3: Cross multiply
    2,836.86x = 3,914.82 × 1,577.88
  4. Step 4: Simplify right side
    2,836.86x = 6,177,091.94
  5. Step 5: Solve for x
    x = 6,177,091.94/2,836.86
  6. Step 6: Final answer
    x = 2,177.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.