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Finding the Fourth Proportional to 7,310.78, 10,966.17 and 2,380.92

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Solution

The fourth proportional to 7,310.78, 10,966.17 and 2,380.92 is: 3,571.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,310.78 : 10,966.17 = 2,380.92 : x
  2. Step 2: Convert to fraction form
    7,310.78/10,966.17 = 2,380.92/x
  3. Step 3: Cross multiply
    7,310.78x = 10,966.17 × 2,380.92
  4. Step 4: Simplify right side
    7,310.78x = 26,109,573.48
  5. Step 5: Solve for x
    x = 26,109,573.48/7,310.78
  6. Step 6: Final answer
    x = 3,571.38

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1.5x scale

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.