Home / 4,917.27-6,786.02-2,821.80

Finding the Fourth Proportional to 4,917.27, 6,786.02 and 2,821.80

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Solution

The fourth proportional to 4,917.27, 6,786.02 and 2,821.80 is: 3,894.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,917.27 : 6,786.02 = 2,821.80 : x
  2. Step 2: Convert to fraction form
    4,917.27/6,786.02 = 2,821.80/x
  3. Step 3: Cross multiply
    4,917.27x = 6,786.02 × 2,821.80
  4. Step 4: Simplify right side
    4,917.27x = 19,148,791.24
  5. Step 5: Solve for x
    x = 19,148,791.24/4,917.27
  6. Step 6: Final answer
    x = 3,894.19

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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.