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Finding the Fourth Proportional to 6,507.24, 8,979.90 and 3,954.12

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Solution

The fourth proportional to 6,507.24, 8,979.90 and 3,954.12 is: 5,456.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,507.24 : 8,979.90 = 3,954.12 : x
  2. Step 2: Convert to fraction form
    6,507.24/8,979.90 = 3,954.12/x
  3. Step 3: Cross multiply
    6,507.24x = 8,979.90 × 3,954.12
  4. Step 4: Simplify right side
    6,507.24x = 35,507,553.69
  5. Step 5: Solve for x
    x = 35,507,553.69/6,507.24
  6. Step 6: Final answer
    x = 5,456.63

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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.