Home / 2,640.99-3,961.48-1,181.16

Finding the Fourth Proportional to 2,640.99, 3,961.48 and 1,181.16

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Solution

The fourth proportional to 2,640.99, 3,961.48 and 1,181.16 is: 1,771.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,640.99 : 3,961.48 = 1,181.16 : x
  2. Step 2: Convert to fraction form
    2,640.99/3,961.48 = 1,181.16/x
  3. Step 3: Cross multiply
    2,640.99x = 3,961.48 × 1,181.16
  4. Step 4: Simplify right side
    2,640.99x = 4,679,141.72
  5. Step 5: Solve for x
    x = 4,679,141.72/2,640.99
  6. Step 6: Final answer
    x = 1,771.74

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Similar ratio
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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.