Home / 7,680.62-11,520.98-2,343.87

Finding the Fourth Proportional to 7,680.62, 11,520.98 and 2,343.87

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Solution

The fourth proportional to 7,680.62, 11,520.98 and 2,343.87 is: 3,515.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,680.62 : 11,520.98 = 2,343.87 : x
  2. Step 2: Convert to fraction form
    7,680.62/11,520.98 = 2,343.87/x
  3. Step 3: Cross multiply
    7,680.62x = 11,520.98 × 2,343.87
  4. Step 4: Simplify right side
    7,680.62x = 27,003,667.67
  5. Step 5: Solve for x
    x = 27,003,667.67/7,680.62
  6. Step 6: Final answer
    x = 3,515.82

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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.