Home / 5,540.72-8,311.08-1,645.04

Finding the Fourth Proportional to 5,540.72, 8,311.08 and 1,645.04

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Solution

The fourth proportional to 5,540.72, 8,311.08 and 1,645.04 is: 2,467.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,540.72 : 8,311.08 = 1,645.04 : x
  2. Step 2: Convert to fraction form
    5,540.72/8,311.08 = 1,645.04/x
  3. Step 3: Cross multiply
    5,540.72x = 8,311.08 × 1,645.04
  4. Step 4: Simplify right side
    5,540.72x = 13,672,059.04
  5. Step 5: Solve for x
    x = 13,672,059.04/5,540.72
  6. Step 6: Final answer
    x = 2,467.56

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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.