Home / 3,141.78-4,712.67-1,293.09

Finding the Fourth Proportional to 3,141.78, 4,712.67 and 1,293.09

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Solution

The fourth proportional to 3,141.78, 4,712.67 and 1,293.09 is: 1,939.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,141.78 : 4,712.67 = 1,293.09 : x
  2. Step 2: Convert to fraction form
    3,141.78/4,712.67 = 1,293.09/x
  3. Step 3: Cross multiply
    3,141.78x = 4,712.67 × 1,293.09
  4. Step 4: Simplify right side
    3,141.78x = 6,093,906.45
  5. Step 5: Solve for x
    x = 6,093,906.45/3,141.78
  6. Step 6: Final answer
    x = 1,939.64

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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.