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Finding the Fourth Proportional to 2,664.76, 3,997.78 and 885.92

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Solution

The fourth proportional to 2,664.76, 3,997.78 and 885.92 is: 1,329.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,664.76 : 3,997.78 = 885.92 : x
  2. Step 2: Convert to fraction form
    2,664.76/3,997.78 = 885.92/x
  3. Step 3: Cross multiply
    2,664.76x = 3,997.78 × 885.92
  4. Step 4: Simplify right side
    2,664.76x = 3,541,713.26
  5. Step 5: Solve for x
    x = 3,541,713.26/2,664.76
  6. Step 6: Final answer
    x = 1,329.09

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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.