Home / 7,743.88-11,618.70-3,637

Finding the Fourth Proportional to 7,743.88, 11,618.70 and 3,637

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Solution

The fourth proportional to 7,743.88, 11,618.70 and 3,637 is: 5,456.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,743.88 : 11,618.70 = 3,637 : x
  2. Step 2: Convert to fraction form
    7,743.88/11,618.70 = 3,637/x
  3. Step 3: Cross multiply
    7,743.88x = 11,618.70 × 3,637
  4. Step 4: Simplify right side
    7,743.88x = 42,257,211.90
  5. Step 5: Solve for x
    x = 42,257,211.90/7,743.88
  6. Step 6: Final answer
    x = 5,456.85

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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.