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Finding the Fourth Proportional to 2,571.75, 3,838.59 and 2,509.61

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Solution

The fourth proportional to 2,571.75, 3,838.59 and 2,509.61 is: 3,745.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,571.75 : 3,838.59 = 2,509.61 : x
  2. Step 2: Convert to fraction form
    2,571.75/3,838.59 = 2,509.61/x
  3. Step 3: Cross multiply
    2,571.75x = 3,838.59 × 2,509.61
  4. Step 4: Simplify right side
    2,571.75x = 9,633,344.66
  5. Step 5: Solve for x
    x = 9,633,344.66/2,571.75
  6. Step 6: Final answer
    x = 3,745.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.