Home / 7,121.44-10,684.46-3,423.95

Finding the Fourth Proportional to 7,121.44, 10,684.46 and 3,423.95

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Solution

The fourth proportional to 7,121.44, 10,684.46 and 3,423.95 is: 5,137.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,121.44 : 10,684.46 = 3,423.95 : x
  2. Step 2: Convert to fraction form
    7,121.44/10,684.46 = 3,423.95/x
  3. Step 3: Cross multiply
    7,121.44x = 10,684.46 × 3,423.95
  4. Step 4: Simplify right side
    7,121.44x = 36,583,092.09
  5. Step 5: Solve for x
    x = 36,583,092.09/7,121.44
  6. Step 6: Final answer
    x = 5,137.04

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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.