Home / 5,490.40-8,236.66-3,996.48

Finding the Fourth Proportional to 5,490.40, 8,236.66 and 3,996.48

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Solution

The fourth proportional to 5,490.40, 8,236.66 and 3,996.48 is: 5,995.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,490.40 : 8,236.66 = 3,996.48 : x
  2. Step 2: Convert to fraction form
    5,490.40/8,236.66 = 3,996.48/x
  3. Step 3: Cross multiply
    5,490.40x = 8,236.66 × 3,996.48
  4. Step 4: Simplify right side
    5,490.40x = 32,917,646.96
  5. Step 5: Solve for x
    x = 32,917,646.96/5,490.40
  6. Step 6: Final answer
    x = 5,995.49

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.