Home / 2,331.78-3,217.83-1,323.68

Finding the Fourth Proportional to 2,331.78, 3,217.83 and 1,323.68

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Solution

The fourth proportional to 2,331.78, 3,217.83 and 1,323.68 is: 1,826.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,331.78 : 3,217.83 = 1,323.68 : x
  2. Step 2: Convert to fraction form
    2,331.78/3,217.83 = 1,323.68/x
  3. Step 3: Cross multiply
    2,331.78x = 3,217.83 × 1,323.68
  4. Step 4: Simplify right side
    2,331.78x = 4,259,377.21
  5. Step 5: Solve for x
    x = 4,259,377.21/2,331.78
  6. Step 6: Final answer
    x = 1,826.66

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Double scale
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Similar ratio
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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.