Home / 3,726.22-5,587.28-1,128.82

Finding the Fourth Proportional to 3,726.22, 5,587.28 and 1,128.82

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Solution

The fourth proportional to 3,726.22, 5,587.28 and 1,128.82 is: 1,692.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,726.22 : 5,587.28 = 1,128.82 : x
  2. Step 2: Convert to fraction form
    3,726.22/5,587.28 = 1,128.82/x
  3. Step 3: Cross multiply
    3,726.22x = 5,587.28 × 1,128.82
  4. Step 4: Simplify right side
    3,726.22x = 6,307,033.41
  5. Step 5: Solve for x
    x = 6,307,033.41/3,726.22
  6. Step 6: Final answer
    x = 1,692.61

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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.