Home / 2,511.44-3,764-1,781.20

Finding the Fourth Proportional to 2,511.44, 3,764 and 1,781.20

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Solution

The fourth proportional to 2,511.44, 3,764 and 1,781.20 is: 2,669.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,511.44 : 3,764 = 1,781.20 : x
  2. Step 2: Convert to fraction form
    2,511.44/3,764 = 1,781.20/x
  3. Step 3: Cross multiply
    2,511.44x = 3,764 × 1,781.20
  4. Step 4: Simplify right side
    2,511.44x = 6,704,436.80
  5. Step 5: Solve for x
    x = 6,704,436.80/2,511.44
  6. Step 6: Final answer
    x = 2,669.56

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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.