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Finding the Fourth Proportional to 6,438.66, 9,651.43 and 3,623.36

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Solution

The fourth proportional to 6,438.66, 9,651.43 and 3,623.36 is: 5,431.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,438.66 : 9,651.43 = 3,623.36 : x
  2. Step 2: Convert to fraction form
    6,438.66/9,651.43 = 3,623.36/x
  3. Step 3: Cross multiply
    6,438.66x = 9,651.43 × 3,623.36
  4. Step 4: Simplify right side
    6,438.66x = 34,970,578.63
  5. Step 5: Solve for x
    x = 34,970,578.63/6,438.66
  6. Step 6: Final answer
    x = 5,431.34

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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.