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Finding the Fourth Proportional to 7,343.78, 11,016.89 and 2,960.87

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Solution

The fourth proportional to 7,343.78, 11,016.89 and 2,960.87 is: 4,441.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,343.78 : 11,016.89 = 2,960.87 : x
  2. Step 2: Convert to fraction form
    7,343.78/11,016.89 = 2,960.87/x
  3. Step 3: Cross multiply
    7,343.78x = 11,016.89 × 2,960.87
  4. Step 4: Simplify right side
    7,343.78x = 32,619,579.09
  5. Step 5: Solve for x
    x = 32,619,579.09/7,343.78
  6. Step 6: Final answer
    x = 4,441.80

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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.