Home / 3,255.05-4,490.37-1,995.71

Finding the Fourth Proportional to 3,255.05, 4,490.37 and 1,995.71

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Solution

The fourth proportional to 3,255.05, 4,490.37 and 1,995.71 is: 2,753.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,255.05 : 4,490.37 = 1,995.71 : x
  2. Step 2: Convert to fraction form
    3,255.05/4,490.37 = 1,995.71/x
  3. Step 3: Cross multiply
    3,255.05x = 4,490.37 × 1,995.71
  4. Step 4: Simplify right side
    3,255.05x = 8,961,453.86
  5. Step 5: Solve for x
    x = 8,961,453.86/3,255.05
  6. Step 6: Final answer
    x = 2,753.09

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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.