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Finding the Fourth Proportional to 5,454.34, 8,183.03 and 1,945.15

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Solution

The fourth proportional to 5,454.34, 8,183.03 and 1,945.15 is: 2,918.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,454.34 : 8,183.03 = 1,945.15 : x
  2. Step 2: Convert to fraction form
    5,454.34/8,183.03 = 1,945.15/x
  3. Step 3: Cross multiply
    5,454.34x = 8,183.03 × 1,945.15
  4. Step 4: Simplify right side
    5,454.34x = 15,917,190.62
  5. Step 5: Solve for x
    x = 15,917,190.62/5,454.34
  6. Step 6: Final answer
    x = 2,918.26

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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.