Home / 1,269.25-1,751.57-745.59

Finding the Fourth Proportional to 1,269.25, 1,751.57 and 745.59

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Solution

The fourth proportional to 1,269.25, 1,751.57 and 745.59 is: 1,028.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,269.25 : 1,751.57 = 745.59 : x
  2. Step 2: Convert to fraction form
    1,269.25/1,751.57 = 745.59/x
  3. Step 3: Cross multiply
    1,269.25x = 1,751.57 × 745.59
  4. Step 4: Simplify right side
    1,269.25x = 1,305,940.59
  5. Step 5: Solve for x
    x = 1,305,940.59/1,269.25
  6. Step 6: Final answer
    x = 1,028.91

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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.