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Finding the Fourth Proportional to 6,387.93, 9,581.22 and 2,005.43

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Solution

The fourth proportional to 6,387.93, 9,581.22 and 2,005.43 is: 3,007.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,387.93 : 9,581.22 = 2,005.43 : x
  2. Step 2: Convert to fraction form
    6,387.93/9,581.22 = 2,005.43/x
  3. Step 3: Cross multiply
    6,387.93x = 9,581.22 × 2,005.43
  4. Step 4: Simplify right side
    6,387.93x = 19,214,418.12
  5. Step 5: Solve for x
    x = 19,214,418.12/6,387.93
  6. Step 6: Final answer
    x = 3,007.93

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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.