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Finding the Fourth Proportional to 3,902.56, 5,853.12 and 1,305.44

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Solution

The fourth proportional to 3,902.56, 5,853.12 and 1,305.44 is: 1,957.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,902.56 : 5,853.12 = 1,305.44 : x
  2. Step 2: Convert to fraction form
    3,902.56/5,853.12 = 1,305.44/x
  3. Step 3: Cross multiply
    3,902.56x = 5,853.12 × 1,305.44
  4. Step 4: Simplify right side
    3,902.56x = 7,640,896.97
  5. Step 5: Solve for x
    x = 7,640,896.97/3,902.56
  6. Step 6: Final answer
    x = 1,957.92

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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.