Home / 2,821.48-4,229.78-1,358.62

Finding the Fourth Proportional to 2,821.48, 4,229.78 and 1,358.62

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Solution

The fourth proportional to 2,821.48, 4,229.78 and 1,358.62 is: 2,036.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,821.48 : 4,229.78 = 1,358.62 : x
  2. Step 2: Convert to fraction form
    2,821.48/4,229.78 = 1,358.62/x
  3. Step 3: Cross multiply
    2,821.48x = 4,229.78 × 1,358.62
  4. Step 4: Simplify right side
    2,821.48x = 5,746,663.70
  5. Step 5: Solve for x
    x = 5,746,663.70/2,821.48
  6. Step 6: Final answer
    x = 2,036.76

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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.