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Finding the Fourth Proportional to 6,399.49, 9,600.24 and 2,239.40

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Solution

The fourth proportional to 6,399.49, 9,600.24 and 2,239.40 is: 3,359.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,399.49 : 9,600.24 = 2,239.40 : x
  2. Step 2: Convert to fraction form
    6,399.49/9,600.24 = 2,239.40/x
  3. Step 3: Cross multiply
    6,399.49x = 9,600.24 × 2,239.40
  4. Step 4: Simplify right side
    6,399.49x = 21,498,737.85
  5. Step 5: Solve for x
    x = 21,498,737.85/6,399.49
  6. Step 6: Final answer
    x = 3,359.45

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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.