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Finding the Fourth Proportional to 2,272.76, 3,409.14 and 629.27

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Solution

The fourth proportional to 2,272.76, 3,409.14 and 629.27 is: 943.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,272.76 : 3,409.14 = 629.27 : x
  2. Step 2: Convert to fraction form
    2,272.76/3,409.14 = 629.27/x
  3. Step 3: Cross multiply
    2,272.76x = 3,409.14 × 629.27
  4. Step 4: Simplify right side
    2,272.76x = 2,145,264.09
  5. Step 5: Solve for x
    x = 2,145,264.09/2,272.76
  6. Step 6: Final answer
    x = 943.90

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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.