Home / 4,185.68-6,280.20-1,721.72

Finding the Fourth Proportional to 4,185.68, 6,280.20 and 1,721.72

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Solution

The fourth proportional to 4,185.68, 6,280.20 and 1,721.72 is: 2,583.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,185.68 : 6,280.20 = 1,721.72 : x
  2. Step 2: Convert to fraction form
    4,185.68/6,280.20 = 1,721.72/x
  3. Step 3: Cross multiply
    4,185.68x = 6,280.20 × 1,721.72
  4. Step 4: Simplify right side
    4,185.68x = 10,812,745.94
  5. Step 5: Solve for x
    x = 10,812,745.94/4,185.68
  6. Step 6: Final answer
    x = 2,583.27

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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.