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Finding the Fourth Proportional to 3,393.48, 5,092.02 and 1,640.64

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Solution

The fourth proportional to 3,393.48, 5,092.02 and 1,640.64 is: 2,461.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,393.48 : 5,092.02 = 1,640.64 : x
  2. Step 2: Convert to fraction form
    3,393.48/5,092.02 = 1,640.64/x
  3. Step 3: Cross multiply
    3,393.48x = 5,092.02 × 1,640.64
  4. Step 4: Simplify right side
    3,393.48x = 8,354,171.69
  5. Step 5: Solve for x
    x = 8,354,171.69/3,393.48
  6. Step 6: Final answer
    x = 2,461.83

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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.