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Finding the Fourth Proportional to 3,375.65, 5,063.48 and 910.71

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Solution

The fourth proportional to 3,375.65, 5,063.48 and 910.71 is: 1,366.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,375.65 : 5,063.48 = 910.71 : x
  2. Step 2: Convert to fraction form
    3,375.65/5,063.48 = 910.71/x
  3. Step 3: Cross multiply
    3,375.65x = 5,063.48 × 910.71
  4. Step 4: Simplify right side
    3,375.65x = 4,611,361.87
  5. Step 5: Solve for x
    x = 4,611,361.87/3,375.65
  6. Step 6: Final answer
    x = 1,366.07

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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.