Home / 2,121.36-3,183.08-1,604.52

Finding the Fourth Proportional to 2,121.36, 3,183.08 and 1,604.52

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Solution

The fourth proportional to 2,121.36, 3,183.08 and 1,604.52 is: 2,407.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,121.36 : 3,183.08 = 1,604.52 : x
  2. Step 2: Convert to fraction form
    2,121.36/3,183.08 = 1,604.52/x
  3. Step 3: Cross multiply
    2,121.36x = 3,183.08 × 1,604.52
  4. Step 4: Simplify right side
    2,121.36x = 5,107,315.52
  5. Step 5: Solve for x
    x = 5,107,315.52/2,121.36
  6. Step 6: Final answer
    x = 2,407.57

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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.