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Finding the Fourth Proportional to 5,891.91, 8,838.72 and 1,995

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Solution

The fourth proportional to 5,891.91, 8,838.72 and 1,995 is: 2,992.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,891.91 : 8,838.72 = 1,995 : x
  2. Step 2: Convert to fraction form
    5,891.91/8,838.72 = 1,995/x
  3. Step 3: Cross multiply
    5,891.91x = 8,838.72 × 1,995
  4. Step 4: Simplify right side
    5,891.91x = 17,633,246.40
  5. Step 5: Solve for x
    x = 17,633,246.40/5,891.91
  6. Step 6: Final answer
    x = 2,992.79

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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.