Home / 2,755.98-4,135.14-1,440.72

Finding the Fourth Proportional to 2,755.98, 4,135.14 and 1,440.72

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Solution

The fourth proportional to 2,755.98, 4,135.14 and 1,440.72 is: 2,161.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,755.98 : 4,135.14 = 1,440.72 : x
  2. Step 2: Convert to fraction form
    2,755.98/4,135.14 = 1,440.72/x
  3. Step 3: Cross multiply
    2,755.98x = 4,135.14 × 1,440.72
  4. Step 4: Simplify right side
    2,755.98x = 5,957,578.90
  5. Step 5: Solve for x
    x = 5,957,578.90/2,755.98
  6. Step 6: Final answer
    x = 2,161.69

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1.5x scale

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.