Home / 2,821.62-4,228.32-1,359.06

Finding the Fourth Proportional to 2,821.62, 4,228.32 and 1,359.06

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Solution

The fourth proportional to 2,821.62, 4,228.32 and 1,359.06 is: 2,036.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,821.62 : 4,228.32 = 1,359.06 : x
  2. Step 2: Convert to fraction form
    2,821.62/4,228.32 = 1,359.06/x
  3. Step 3: Cross multiply
    2,821.62x = 4,228.32 × 1,359.06
  4. Step 4: Simplify right side
    2,821.62x = 5,746,540.58
  5. Step 5: Solve for x
    x = 5,746,540.58/2,821.62
  6. Step 6: Final answer
    x = 2,036.61

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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.