Home / 3,600.78-5,392.46-2,979.91

Finding the Fourth Proportional to 3,600.78, 5,392.46 and 2,979.91

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Solution

The fourth proportional to 3,600.78, 5,392.46 and 2,979.91 is: 4,462.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,600.78 : 5,392.46 = 2,979.91 : x
  2. Step 2: Convert to fraction form
    3,600.78/5,392.46 = 2,979.91/x
  3. Step 3: Cross multiply
    3,600.78x = 5,392.46 × 2,979.91
  4. Step 4: Simplify right side
    3,600.78x = 16,069,042.91
  5. Step 5: Solve for x
    x = 16,069,042.91/3,600.78
  6. Step 6: Final answer
    x = 4,462.66

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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.