Home / 7,717.20-11,566.32-3,329.76

Finding the Fourth Proportional to 7,717.20, 11,566.32 and 3,329.76

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Solution

The fourth proportional to 7,717.20, 11,566.32 and 3,329.76 is: 4,990.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,717.20 : 11,566.32 = 3,329.76 : x
  2. Step 2: Convert to fraction form
    7,717.20/11,566.32 = 3,329.76/x
  3. Step 3: Cross multiply
    7,717.20x = 11,566.32 × 3,329.76
  4. Step 4: Simplify right side
    7,717.20x = 38,513,069.68
  5. Step 5: Solve for x
    x = 38,513,069.68/7,717.20
  6. Step 6: Final answer
    x = 4,990.55

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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.