Home / 1,511.26-2,083.45-1,292.54

Finding the Fourth Proportional to 1,511.26, 2,083.45 and 1,292.54

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Solution

The fourth proportional to 1,511.26, 2,083.45 and 1,292.54 is: 1,781.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511.26 : 2,083.45 = 1,292.54 : x
  2. Step 2: Convert to fraction form
    1,511.26/2,083.45 = 1,292.54/x
  3. Step 3: Cross multiply
    1,511.26x = 2,083.45 × 1,292.54
  4. Step 4: Simplify right side
    1,511.26x = 2,692,942.46
  5. Step 5: Solve for x
    x = 2,692,942.46/1,511.26
  6. Step 6: Final answer
    x = 1,781.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.