Home / 1,269.13-1,751.75-745.33

Finding the Fourth Proportional to 1,269.13, 1,751.75 and 745.33

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Solution

The fourth proportional to 1,269.13, 1,751.75 and 745.33 is: 1,028.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,269.13 : 1,751.75 = 745.33 : x
  2. Step 2: Convert to fraction form
    1,269.13/1,751.75 = 745.33/x
  3. Step 3: Cross multiply
    1,269.13x = 1,751.75 × 745.33
  4. Step 4: Simplify right side
    1,269.13x = 1,305,631.83
  5. Step 5: Solve for x
    x = 1,305,631.83/1,269.13
  6. Step 6: Final answer
    x = 1,028.76

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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.