Home / 3,286.78-4,929.63-1,095.22

Finding the Fourth Proportional to 3,286.78, 4,929.63 and 1,095.22

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Solution

The fourth proportional to 3,286.78, 4,929.63 and 1,095.22 is: 1,642.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,286.78 : 4,929.63 = 1,095.22 : x
  2. Step 2: Convert to fraction form
    3,286.78/4,929.63 = 1,095.22/x
  3. Step 3: Cross multiply
    3,286.78x = 4,929.63 × 1,095.22
  4. Step 4: Simplify right side
    3,286.78x = 5,399,029.37
  5. Step 5: Solve for x
    x = 5,399,029.37/3,286.78
  6. Step 6: Final answer
    x = 1,642.65

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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.