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Finding the Fourth Proportional to 8,406.88, 11,601.04 and 4,629.31

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Solution

The fourth proportional to 8,406.88, 11,601.04 and 4,629.31 is: 6,388.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,406.88 : 11,601.04 = 4,629.31 : x
  2. Step 2: Convert to fraction form
    8,406.88/11,601.04 = 4,629.31/x
  3. Step 3: Cross multiply
    8,406.88x = 11,601.04 × 4,629.31
  4. Step 4: Simplify right side
    8,406.88x = 53,704,752.48
  5. Step 5: Solve for x
    x = 53,704,752.48/8,406.88
  6. Step 6: Final answer
    x = 6,388.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.