Home / 4,919.70-6,789.82-2,823.78

Finding the Fourth Proportional to 4,919.70, 6,789.82 and 2,823.78

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Solution

The fourth proportional to 4,919.70, 6,789.82 and 2,823.78 is: 3,897.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,919.70 : 6,789.82 = 2,823.78 : x
  2. Step 2: Convert to fraction form
    4,919.70/6,789.82 = 2,823.78/x
  3. Step 3: Cross multiply
    4,919.70x = 6,789.82 × 2,823.78
  4. Step 4: Simplify right side
    4,919.70x = 19,172,957.92
  5. Step 5: Solve for x
    x = 19,172,957.92/4,919.70
  6. Step 6: Final answer
    x = 3,897.18

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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.