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Finding the Fourth Proportional to 5,286.98, 7,296.41 and 2,929.28

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Solution

The fourth proportional to 5,286.98, 7,296.41 and 2,929.28 is: 4,042.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,286.98 : 7,296.41 = 2,929.28 : x
  2. Step 2: Convert to fraction form
    5,286.98/7,296.41 = 2,929.28/x
  3. Step 3: Cross multiply
    5,286.98x = 7,296.41 × 2,929.28
  4. Step 4: Simplify right side
    5,286.98x = 21,373,176.76
  5. Step 5: Solve for x
    x = 21,373,176.76/5,286.98
  6. Step 6: Final answer
    x = 4,042.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.