Home / 2,175.23-3,001.97-1,231.03

Finding the Fourth Proportional to 2,175.23, 3,001.97 and 1,231.03

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Solution

The fourth proportional to 2,175.23, 3,001.97 and 1,231.03 is: 1,698.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,175.23 : 3,001.97 = 1,231.03 : x
  2. Step 2: Convert to fraction form
    2,175.23/3,001.97 = 1,231.03/x
  3. Step 3: Cross multiply
    2,175.23x = 3,001.97 × 1,231.03
  4. Step 4: Simplify right side
    2,175.23x = 3,695,500.12
  5. Step 5: Solve for x
    x = 3,695,500.12/2,175.23
  6. Step 6: Final answer
    x = 1,698.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.