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Finding the Fourth Proportional to 6,744.96, 9,305.37 and 4,091.40

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Solution

The fourth proportional to 6,744.96, 9,305.37 and 4,091.40 is: 5,644.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,744.96 : 9,305.37 = 4,091.40 : x
  2. Step 2: Convert to fraction form
    6,744.96/9,305.37 = 4,091.40/x
  3. Step 3: Cross multiply
    6,744.96x = 9,305.37 × 4,091.40
  4. Step 4: Simplify right side
    6,744.96x = 38,071,990.82
  5. Step 5: Solve for x
    x = 38,071,990.82/6,744.96
  6. Step 6: Final answer
    x = 5,644.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.