Home / 7,973.78-11,960.66-2,778.44

Finding the Fourth Proportional to 7,973.78, 11,960.66 and 2,778.44

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Solution

The fourth proportional to 7,973.78, 11,960.66 and 2,778.44 is: 4,167.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,973.78 : 11,960.66 = 2,778.44 : x
  2. Step 2: Convert to fraction form
    7,973.78/11,960.66 = 2,778.44/x
  3. Step 3: Cross multiply
    7,973.78x = 11,960.66 × 2,778.44
  4. Step 4: Simplify right side
    7,973.78x = 33,231,923.31
  5. Step 5: Solve for x
    x = 33,231,923.31/7,973.78
  6. Step 6: Final answer
    x = 4,167.65

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Similar ratio
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1.5x scale

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.