Home / 3,187.35-4,786.83-1,956.96

Finding the Fourth Proportional to 3,187.35, 4,786.83 and 1,956.96

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Solution

The fourth proportional to 3,187.35, 4,786.83 and 1,956.96 is: 2,939.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.35 : 4,786.83 = 1,956.96 : x
  2. Step 2: Convert to fraction form
    3,187.35/4,786.83 = 1,956.96/x
  3. Step 3: Cross multiply
    3,187.35x = 4,786.83 × 1,956.96
  4. Step 4: Simplify right side
    3,187.35x = 9,367,634.84
  5. Step 5: Solve for x
    x = 9,367,634.84/3,187.35
  6. Step 6: Final answer
    x = 2,939.00

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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.