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Finding the Fourth Proportional to 5,659.01, 8,489.09 and 1,960.39

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Solution

The fourth proportional to 5,659.01, 8,489.09 and 1,960.39 is: 2,940.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,659.01 : 8,489.09 = 1,960.39 : x
  2. Step 2: Convert to fraction form
    5,659.01/8,489.09 = 1,960.39/x
  3. Step 3: Cross multiply
    5,659.01x = 8,489.09 × 1,960.39
  4. Step 4: Simplify right side
    5,659.01x = 16,641,917.34
  5. Step 5: Solve for x
    x = 16,641,917.34/5,659.01
  6. Step 6: Final answer
    x = 2,940.78

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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.