Home / 2,823.52-3,894.60-1,939.80

Finding the Fourth Proportional to 2,823.52, 3,894.60 and 1,939.80

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Solution

The fourth proportional to 2,823.52, 3,894.60 and 1,939.80 is: 2,675.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,823.52 : 3,894.60 = 1,939.80 : x
  2. Step 2: Convert to fraction form
    2,823.52/3,894.60 = 1,939.80/x
  3. Step 3: Cross multiply
    2,823.52x = 3,894.60 × 1,939.80
  4. Step 4: Simplify right side
    2,823.52x = 7,554,745.08
  5. Step 5: Solve for x
    x = 7,554,745.08/2,823.52
  6. Step 6: Final answer
    x = 2,675.65

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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.