Home / 3,610.77-5,418.38-1,419.11

Finding the Fourth Proportional to 3,610.77, 5,418.38 and 1,419.11

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Solution

The fourth proportional to 3,610.77, 5,418.38 and 1,419.11 is: 2,129.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,610.77 : 5,418.38 = 1,419.11 : x
  2. Step 2: Convert to fraction form
    3,610.77/5,418.38 = 1,419.11/x
  3. Step 3: Cross multiply
    3,610.77x = 5,418.38 × 1,419.11
  4. Step 4: Simplify right side
    3,610.77x = 7,689,277.24
  5. Step 5: Solve for x
    x = 7,689,277.24/3,610.77
  6. Step 6: Final answer
    x = 2,129.54

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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.