Home / 7,884.52-11,821.31-3,721.02

Finding the Fourth Proportional to 7,884.52, 11,821.31 and 3,721.02

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Solution

The fourth proportional to 7,884.52, 11,821.31 and 3,721.02 is: 5,578.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,884.52 : 11,821.31 = 3,721.02 : x
  2. Step 2: Convert to fraction form
    7,884.52/11,821.31 = 3,721.02/x
  3. Step 3: Cross multiply
    7,884.52x = 11,821.31 × 3,721.02
  4. Step 4: Simplify right side
    7,884.52x = 43,987,312.33
  5. Step 5: Solve for x
    x = 43,987,312.33/7,884.52
  6. Step 6: Final answer
    x = 5,578.95

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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.