Home / 3,610.28-5,415.75-1,418.49

Finding the Fourth Proportional to 3,610.28, 5,415.75 and 1,418.49

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Solution

The fourth proportional to 3,610.28, 5,415.75 and 1,418.49 is: 2,127.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,610.28 : 5,415.75 = 1,418.49 : x
  2. Step 2: Convert to fraction form
    3,610.28/5,415.75 = 1,418.49/x
  3. Step 3: Cross multiply
    3,610.28x = 5,415.75 × 1,418.49
  4. Step 4: Simplify right side
    3,610.28x = 7,682,187.22
  5. Step 5: Solve for x
    x = 7,682,187.22/3,610.28
  6. Step 6: Final answer
    x = 2,127.87

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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.