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Finding the Fourth Proportional to 5,887.88, 8,821.45 and 3,108.43

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Solution

The fourth proportional to 5,887.88, 8,821.45 and 3,108.43 is: 4,657.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,887.88 : 8,821.45 = 3,108.43 : x
  2. Step 2: Convert to fraction form
    5,887.88/8,821.45 = 3,108.43/x
  3. Step 3: Cross multiply
    5,887.88x = 8,821.45 × 3,108.43
  4. Step 4: Simplify right side
    5,887.88x = 27,420,859.82
  5. Step 5: Solve for x
    x = 27,420,859.82/5,887.88
  6. Step 6: Final answer
    x = 4,657.17

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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.