Home / 2,755.24-4,127.00-1,275.66

Finding the Fourth Proportional to 2,755.24, 4,127.00 and 1,275.66

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Solution

The fourth proportional to 2,755.24, 4,127.00 and 1,275.66 is: 1,910.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,755.24 : 4,127.00 = 1,275.66 : x
  2. Step 2: Convert to fraction form
    2,755.24/4,127.00 = 1,275.66/x
  3. Step 3: Cross multiply
    2,755.24x = 4,127.00 × 1,275.66
  4. Step 4: Simplify right side
    2,755.24x = 5,264,642.44
  5. Step 5: Solve for x
    x = 5,264,642.44/2,755.24
  6. Step 6: Final answer
    x = 1,910.78

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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.