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Finding the Fourth Proportional to 8,908, 13,361.92 and 3,641.88

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Solution

The fourth proportional to 8,908, 13,361.92 and 3,641.88 is: 5,462.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,908 : 13,361.92 = 3,641.88 : x
  2. Step 2: Convert to fraction form
    8,908/13,361.92 = 3,641.88/x
  3. Step 3: Cross multiply
    8,908x = 13,361.92 × 3,641.88
  4. Step 4: Simplify right side
    8,908x = 48,662,509.21
  5. Step 5: Solve for x
    x = 48,662,509.21/8,908
  6. Step 6: Final answer
    x = 5,462.79

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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.