Home / 4,874.39-6,726.83-2,778.65

Finding the Fourth Proportional to 4,874.39, 6,726.83 and 2,778.65

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Solution

The fourth proportional to 4,874.39, 6,726.83 and 2,778.65 is: 3,834.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,874.39 : 6,726.83 = 2,778.65 : x
  2. Step 2: Convert to fraction form
    4,874.39/6,726.83 = 2,778.65/x
  3. Step 3: Cross multiply
    4,874.39x = 6,726.83 × 2,778.65
  4. Step 4: Simplify right side
    4,874.39x = 18,691,458.65
  5. Step 5: Solve for x
    x = 18,691,458.65/4,874.39
  6. Step 6: Final answer
    x = 3,834.63

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1.5x scale

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.