Home / 5,454.72-8,181.36-2,166.96

Finding the Fourth Proportional to 5,454.72, 8,181.36 and 2,166.96

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Solution

The fourth proportional to 5,454.72, 8,181.36 and 2,166.96 is: 3,250.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,454.72 : 8,181.36 = 2,166.96 : x
  2. Step 2: Convert to fraction form
    5,454.72/8,181.36 = 2,166.96/x
  3. Step 3: Cross multiply
    5,454.72x = 8,181.36 × 2,166.96
  4. Step 4: Simplify right side
    5,454.72x = 17,728,679.87
  5. Step 5: Solve for x
    x = 17,728,679.87/5,454.72
  6. Step 6: Final answer
    x = 3,250.15

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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.