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Finding the Fourth Proportional to 2,554.94, 3,832.38 and 911.54

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Solution

The fourth proportional to 2,554.94, 3,832.38 and 911.54 is: 1,367.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,554.94 : 3,832.38 = 911.54 : x
  2. Step 2: Convert to fraction form
    2,554.94/3,832.38 = 911.54/x
  3. Step 3: Cross multiply
    2,554.94x = 3,832.38 × 911.54
  4. Step 4: Simplify right side
    2,554.94x = 3,493,367.67
  5. Step 5: Solve for x
    x = 3,493,367.67/2,554.94
  6. Step 6: Final answer
    x = 1,367.30

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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.