Home / 7,819.38-10,791.09-4,282.65

Finding the Fourth Proportional to 7,819.38, 10,791.09 and 4,282.65

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Solution

The fourth proportional to 7,819.38, 10,791.09 and 4,282.65 is: 5,910.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,819.38 : 10,791.09 = 4,282.65 : x
  2. Step 2: Convert to fraction form
    7,819.38/10,791.09 = 4,282.65/x
  3. Step 3: Cross multiply
    7,819.38x = 10,791.09 × 4,282.65
  4. Step 4: Simplify right side
    7,819.38x = 46,214,461.59
  5. Step 5: Solve for x
    x = 46,214,461.59/7,819.38
  6. Step 6: Final answer
    x = 5,910.25

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Half scale
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Double scale
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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.