Home / 2,175.57-3,001.92-1,231.26

Finding the Fourth Proportional to 2,175.57, 3,001.92 and 1,231.26

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Solution

The fourth proportional to 2,175.57, 3,001.92 and 1,231.26 is: 1,698.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,175.57 : 3,001.92 = 1,231.26 : x
  2. Step 2: Convert to fraction form
    2,175.57/3,001.92 = 1,231.26/x
  3. Step 3: Cross multiply
    2,175.57x = 3,001.92 × 1,231.26
  4. Step 4: Simplify right side
    2,175.57x = 3,696,144.02
  5. Step 5: Solve for x
    x = 3,696,144.02/2,175.57
  6. Step 6: Final answer
    x = 1,698.93

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1.5x scale

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.