Home / 1,841.20-2,761.70-745.27

Finding the Fourth Proportional to 1,841.20, 2,761.70 and 745.27

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Solution

The fourth proportional to 1,841.20, 2,761.70 and 745.27 is: 1,117.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,841.20 : 2,761.70 = 745.27 : x
  2. Step 2: Convert to fraction form
    1,841.20/2,761.70 = 745.27/x
  3. Step 3: Cross multiply
    1,841.20x = 2,761.70 × 745.27
  4. Step 4: Simplify right side
    1,841.20x = 2,058,201.53
  5. Step 5: Solve for x
    x = 2,058,201.53/1,841.20
  6. Step 6: Final answer
    x = 1,117.86

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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.