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Finding the Fourth Proportional to 3,752.79, 5,629.13 and 1,672.26

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Solution

The fourth proportional to 3,752.79, 5,629.13 and 1,672.26 is: 2,508.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,752.79 : 5,629.13 = 1,672.26 : x
  2. Step 2: Convert to fraction form
    3,752.79/5,629.13 = 1,672.26/x
  3. Step 3: Cross multiply
    3,752.79x = 5,629.13 × 1,672.26
  4. Step 4: Simplify right side
    3,752.79x = 9,413,368.93
  5. Step 5: Solve for x
    x = 9,413,368.93/3,752.79
  6. Step 6: Final answer
    x = 2,508.37

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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.