Home / 5,286.92-7,296.36-2,929.28

Finding the Fourth Proportional to 5,286.92, 7,296.36 and 2,929.28

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Solution

The fourth proportional to 5,286.92, 7,296.36 and 2,929.28 is: 4,042.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,286.92 : 7,296.36 = 2,929.28 : x
  2. Step 2: Convert to fraction form
    5,286.92/7,296.36 = 2,929.28/x
  3. Step 3: Cross multiply
    5,286.92x = 7,296.36 × 2,929.28
  4. Step 4: Simplify right side
    5,286.92x = 21,373,081.42
  5. Step 5: Solve for x
    x = 21,373,081.42/5,286.92
  6. Step 6: Final answer
    x = 4,042.63

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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.