Home / 7,680.62-11,522.14-2,750.15

Finding the Fourth Proportional to 7,680.62, 11,522.14 and 2,750.15

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Solution

The fourth proportional to 7,680.62, 11,522.14 and 2,750.15 is: 4,125.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,680.62 : 11,522.14 = 2,750.15 : x
  2. Step 2: Convert to fraction form
    7,680.62/11,522.14 = 2,750.15/x
  3. Step 3: Cross multiply
    7,680.62x = 11,522.14 × 2,750.15
  4. Step 4: Simplify right side
    7,680.62x = 31,687,555.71
  5. Step 5: Solve for x
    x = 31,687,555.71/7,680.62
  6. Step 6: Final answer
    x = 4,125.65

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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.