Home / 3,175.09-4,383.45-2,112.57

Finding the Fourth Proportional to 3,175.09, 4,383.45 and 2,112.57

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Solution

The fourth proportional to 3,175.09, 4,383.45 and 2,112.57 is: 2,916.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,175.09 : 4,383.45 = 2,112.57 : x
  2. Step 2: Convert to fraction form
    3,175.09/4,383.45 = 2,112.57/x
  3. Step 3: Cross multiply
    3,175.09x = 4,383.45 × 2,112.57
  4. Step 4: Simplify right side
    3,175.09x = 9,260,344.97
  5. Step 5: Solve for x
    x = 9,260,344.97/3,175.09
  6. Step 6: Final answer
    x = 2,916.56

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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.