Home / 3,608.36-5,415.61-1,418.62

Finding the Fourth Proportional to 3,608.36, 5,415.61 and 1,418.62

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Solution

The fourth proportional to 3,608.36, 5,415.61 and 1,418.62 is: 2,129.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,608.36 : 5,415.61 = 1,418.62 : x
  2. Step 2: Convert to fraction form
    3,608.36/5,415.61 = 1,418.62/x
  3. Step 3: Cross multiply
    3,608.36x = 5,415.61 × 1,418.62
  4. Step 4: Simplify right side
    3,608.36x = 7,682,692.66
  5. Step 5: Solve for x
    x = 7,682,692.66/3,608.36
  6. Step 6: Final answer
    x = 2,129.14

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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.