Home / 2,108.00-3,161.07-1,621.38

Finding the Fourth Proportional to 2,108.00, 3,161.07 and 1,621.38

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Solution

The fourth proportional to 2,108.00, 3,161.07 and 1,621.38 is: 2,431.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,108.00 : 3,161.07 = 1,621.38 : x
  2. Step 2: Convert to fraction form
    2,108.00/3,161.07 = 1,621.38/x
  3. Step 3: Cross multiply
    2,108.00x = 3,161.07 × 1,621.38
  4. Step 4: Simplify right side
    2,108.00x = 5,125,295.68
  5. Step 5: Solve for x
    x = 5,125,295.68/2,108.00
  6. Step 6: Final answer
    x = 2,431.36

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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.