Home / 7,930.73-11,895.14-2,087.80

Finding the Fourth Proportional to 7,930.73, 11,895.14 and 2,087.80

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Solution

The fourth proportional to 7,930.73, 11,895.14 and 2,087.80 is: 3,131.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,930.73 : 11,895.14 = 2,087.80 : x
  2. Step 2: Convert to fraction form
    7,930.73/11,895.14 = 2,087.80/x
  3. Step 3: Cross multiply
    7,930.73x = 11,895.14 × 2,087.80
  4. Step 4: Simplify right side
    7,930.73x = 24,834,648.77
  5. Step 5: Solve for x
    x = 24,834,648.77/7,930.73
  6. Step 6: Final answer
    x = 3,131.44

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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.