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Finding the Fourth Proportional to 3,620.01, 5,429.73 and 1,672.23

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Solution

The fourth proportional to 3,620.01, 5,429.73 and 1,672.23 is: 2,508.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,620.01 : 5,429.73 = 1,672.23 : x
  2. Step 2: Convert to fraction form
    3,620.01/5,429.73 = 1,672.23/x
  3. Step 3: Cross multiply
    3,620.01x = 5,429.73 × 1,672.23
  4. Step 4: Simplify right side
    3,620.01x = 9,079,757.40
  5. Step 5: Solve for x
    x = 9,079,757.40/3,620.01
  6. Step 6: Final answer
    x = 2,508.21

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.