Home / 2,761.80-4,144.05-2,103.45

Finding the Fourth Proportional to 2,761.80, 4,144.05 and 2,103.45

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Solution

The fourth proportional to 2,761.80, 4,144.05 and 2,103.45 is: 3,156.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,761.80 : 4,144.05 = 2,103.45 : x
  2. Step 2: Convert to fraction form
    2,761.80/4,144.05 = 2,103.45/x
  3. Step 3: Cross multiply
    2,761.80x = 4,144.05 × 2,103.45
  4. Step 4: Simplify right side
    2,761.80x = 8,716,801.97
  5. Step 5: Solve for x
    x = 8,716,801.97/2,761.80
  6. Step 6: Final answer
    x = 3,156.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.