Home / 5,456.72-8,185.08-1,997.84

Finding the Fourth Proportional to 5,456.72, 8,185.08 and 1,997.84

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Solution

The fourth proportional to 5,456.72, 8,185.08 and 1,997.84 is: 2,996.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,456.72 : 8,185.08 = 1,997.84 : x
  2. Step 2: Convert to fraction form
    5,456.72/8,185.08 = 1,997.84/x
  3. Step 3: Cross multiply
    5,456.72x = 8,185.08 × 1,997.84
  4. Step 4: Simplify right side
    5,456.72x = 16,352,480.23
  5. Step 5: Solve for x
    x = 16,352,480.23/5,456.72
  6. Step 6: Final answer
    x = 2,996.76

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