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Finding the Fourth Proportional to 5,606.92, 8,400.81 and 3,960.29

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Solution

The fourth proportional to 5,606.92, 8,400.81 and 3,960.29 is: 5,933.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,606.92 : 8,400.81 = 3,960.29 : x
  2. Step 2: Convert to fraction form
    5,606.92/8,400.81 = 3,960.29/x
  3. Step 3: Cross multiply
    5,606.92x = 8,400.81 × 3,960.29
  4. Step 4: Simplify right side
    5,606.92x = 33,269,679.69
  5. Step 5: Solve for x
    x = 33,269,679.69/5,606.92
  6. Step 6: Final answer
    x = 5,933.68

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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.