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Finding the Fourth Proportional to 5,940.91, 8,911.37 and 1,781.37

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Solution

The fourth proportional to 5,940.91, 8,911.37 and 1,781.37 is: 2,672.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,940.91 : 8,911.37 = 1,781.37 : x
  2. Step 2: Convert to fraction form
    5,940.91/8,911.37 = 1,781.37/x
  3. Step 3: Cross multiply
    5,940.91x = 8,911.37 × 1,781.37
  4. Step 4: Simplify right side
    5,940.91x = 15,874,447.18
  5. Step 5: Solve for x
    x = 15,874,447.18/5,940.91
  6. Step 6: Final answer
    x = 2,672.06

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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.