Home / 4,754.61-7,133.60-2,121.87

Finding the Fourth Proportional to 4,754.61, 7,133.60 and 2,121.87

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Solution

The fourth proportional to 4,754.61, 7,133.60 and 2,121.87 is: 3,183.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,754.61 : 7,133.60 = 2,121.87 : x
  2. Step 2: Convert to fraction form
    4,754.61/7,133.60 = 2,121.87/x
  3. Step 3: Cross multiply
    4,754.61x = 7,133.60 × 2,121.87
  4. Step 4: Simplify right side
    4,754.61x = 15,136,571.83
  5. Step 5: Solve for x
    x = 15,136,571.83/4,754.61
  6. Step 6: Final answer
    x = 3,183.56

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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.