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Finding the Fourth Proportional to 2,755.08, 4,132.89 and 905.44

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Solution

The fourth proportional to 2,755.08, 4,132.89 and 905.44 is: 1,358.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,755.08 : 4,132.89 = 905.44 : x
  2. Step 2: Convert to fraction form
    2,755.08/4,132.89 = 905.44/x
  3. Step 3: Cross multiply
    2,755.08x = 4,132.89 × 905.44
  4. Step 4: Simplify right side
    2,755.08x = 3,742,079.39
  5. Step 5: Solve for x
    x = 3,742,079.39/2,755.08
  6. Step 6: Final answer
    x = 1,358.25

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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.