Home / 4,914.91-6,781.96-2,790.65

Finding the Fourth Proportional to 4,914.91, 6,781.96 and 2,790.65

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Solution

The fourth proportional to 4,914.91, 6,781.96 and 2,790.65 is: 3,850.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,914.91 : 6,781.96 = 2,790.65 : x
  2. Step 2: Convert to fraction form
    4,914.91/6,781.96 = 2,790.65/x
  3. Step 3: Cross multiply
    4,914.91x = 6,781.96 × 2,790.65
  4. Step 4: Simplify right side
    4,914.91x = 18,926,097.12
  5. Step 5: Solve for x
    x = 18,926,097.12/4,914.91
  6. Step 6: Final answer
    x = 3,850.75

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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.