Home / 2,511.03-3,759.56-1,275.78

Finding the Fourth Proportional to 2,511.03, 3,759.56 and 1,275.78

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Solution

The fourth proportional to 2,511.03, 3,759.56 and 1,275.78 is: 1,910.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,511.03 : 3,759.56 = 1,275.78 : x
  2. Step 2: Convert to fraction form
    2,511.03/3,759.56 = 1,275.78/x
  3. Step 3: Cross multiply
    2,511.03x = 3,759.56 × 1,275.78
  4. Step 4: Simplify right side
    2,511.03x = 4,796,365.08
  5. Step 5: Solve for x
    x = 4,796,365.08/2,511.03
  6. Step 6: Final answer
    x = 1,910.12

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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.