Home / 4,917.92-6,786.52-2,821.92

Finding the Fourth Proportional to 4,917.92, 6,786.52 and 2,821.92

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Solution

The fourth proportional to 4,917.92, 6,786.52 and 2,821.92 is: 3,894.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,917.92 : 6,786.52 = 2,821.92 : x
  2. Step 2: Convert to fraction form
    4,917.92/6,786.52 = 2,821.92/x
  3. Step 3: Cross multiply
    4,917.92x = 6,786.52 × 2,821.92
  4. Step 4: Simplify right side
    4,917.92x = 19,151,016.52
  5. Step 5: Solve for x
    x = 19,151,016.52/4,917.92
  6. Step 6: Final answer
    x = 3,894.13

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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.