Home / 1,936.92-2,673.20-1,229.10

Finding the Fourth Proportional to 1,936.92, 2,673.20 and 1,229.10

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Solution

The fourth proportional to 1,936.92, 2,673.20 and 1,229.10 is: 1,696.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,936.92 : 2,673.20 = 1,229.10 : x
  2. Step 2: Convert to fraction form
    1,936.92/2,673.20 = 1,229.10/x
  3. Step 3: Cross multiply
    1,936.92x = 2,673.20 × 1,229.10
  4. Step 4: Simplify right side
    1,936.92x = 3,285,630.12
  5. Step 5: Solve for x
    x = 3,285,630.12/1,936.92
  6. Step 6: Final answer
    x = 1,696.32

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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.