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Finding the Fourth Proportional to 2,879.80, 3,974.88 and 1,701.22

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Solution

The fourth proportional to 2,879.80, 3,974.88 and 1,701.22 is: 2,348.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,879.80 : 3,974.88 = 1,701.22 : x
  2. Step 2: Convert to fraction form
    2,879.80/3,974.88 = 1,701.22/x
  3. Step 3: Cross multiply
    2,879.80x = 3,974.88 × 1,701.22
  4. Step 4: Simplify right side
    2,879.80x = 6,762,145.35
  5. Step 5: Solve for x
    x = 6,762,145.35/2,879.80
  6. Step 6: Final answer
    x = 2,348.13

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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.