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Finding the Fourth Proportional to 2,754.54, 4,132.35 and 905.04

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Solution

The fourth proportional to 2,754.54, 4,132.35 and 905.04 is: 1,357.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,754.54 : 4,132.35 = 905.04 : x
  2. Step 2: Convert to fraction form
    2,754.54/4,132.35 = 905.04/x
  3. Step 3: Cross multiply
    2,754.54x = 4,132.35 × 905.04
  4. Step 4: Simplify right side
    2,754.54x = 3,739,942.04
  5. Step 5: Solve for x
    x = 3,739,942.04/2,754.54
  6. Step 6: Final answer
    x = 1,357.74

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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.