Home / 4,107.80-6,161.70-2,649.80

Finding the Fourth Proportional to 4,107.80, 6,161.70 and 2,649.80

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Solution

The fourth proportional to 4,107.80, 6,161.70 and 2,649.80 is: 3,974.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,107.80 : 6,161.70 = 2,649.80 : x
  2. Step 2: Convert to fraction form
    4,107.80/6,161.70 = 2,649.80/x
  3. Step 3: Cross multiply
    4,107.80x = 6,161.70 × 2,649.80
  4. Step 4: Simplify right side
    4,107.80x = 16,327,272.66
  5. Step 5: Solve for x
    x = 16,327,272.66/4,107.80
  6. Step 6: Final answer
    x = 3,974.70

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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.