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Finding the Fourth Proportional to 5,571.52, 7,685.04 and 3,578.92

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Solution

The fourth proportional to 5,571.52, 7,685.04 and 3,578.92 is: 4,936.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,571.52 : 7,685.04 = 3,578.92 : x
  2. Step 2: Convert to fraction form
    5,571.52/7,685.04 = 3,578.92/x
  3. Step 3: Cross multiply
    5,571.52x = 7,685.04 × 3,578.92
  4. Step 4: Simplify right side
    5,571.52x = 27,504,143.36
  5. Step 5: Solve for x
    x = 27,504,143.36/5,571.52
  6. Step 6: Final answer
    x = 4,936.56

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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.