Home / 3,320.91-4,582.39-1,976.13

Finding the Fourth Proportional to 3,320.91, 4,582.39 and 1,976.13

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Solution

The fourth proportional to 3,320.91, 4,582.39 and 1,976.13 is: 2,726.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,320.91 : 4,582.39 = 1,976.13 : x
  2. Step 2: Convert to fraction form
    3,320.91/4,582.39 = 1,976.13/x
  3. Step 3: Cross multiply
    3,320.91x = 4,582.39 × 1,976.13
  4. Step 4: Simplify right side
    3,320.91x = 9,055,398.35
  5. Step 5: Solve for x
    x = 9,055,398.35/3,320.91
  6. Step 6: Final answer
    x = 2,726.78

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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.