Home / 5,238.48-7,229.11-2,880.62

Finding the Fourth Proportional to 5,238.48, 7,229.11 and 2,880.62

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Solution

The fourth proportional to 5,238.48, 7,229.11 and 2,880.62 is: 3,975.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,238.48 : 7,229.11 = 2,880.62 : x
  2. Step 2: Convert to fraction form
    5,238.48/7,229.11 = 2,880.62/x
  3. Step 3: Cross multiply
    5,238.48x = 7,229.11 × 2,880.62
  4. Step 4: Simplify right side
    5,238.48x = 20,824,329.72
  5. Step 5: Solve for x
    x = 20,824,329.72/5,238.48
  6. Step 6: Final answer
    x = 3,975.26

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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.