Home / 7,765.91-11,644.71-3,085.73

Finding the Fourth Proportional to 7,765.91, 11,644.71 and 3,085.73

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Solution

The fourth proportional to 7,765.91, 11,644.71 and 3,085.73 is: 4,626.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,765.91 : 11,644.71 = 3,085.73 : x
  2. Step 2: Convert to fraction form
    7,765.91/11,644.71 = 3,085.73/x
  3. Step 3: Cross multiply
    7,765.91x = 11,644.71 × 3,085.73
  4. Step 4: Simplify right side
    7,765.91x = 35,932,430.99
  5. Step 5: Solve for x
    x = 35,932,430.99/7,765.91
  6. Step 6: Final answer
    x = 4,626.94

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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.