Home / 2,258.58-3,115.22-2,072.66

Finding the Fourth Proportional to 2,258.58, 3,115.22 and 2,072.66

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Solution

The fourth proportional to 2,258.58, 3,115.22 and 2,072.66 is: 2,858.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,258.58 : 3,115.22 = 2,072.66 : x
  2. Step 2: Convert to fraction form
    2,258.58/3,115.22 = 2,072.66/x
  3. Step 3: Cross multiply
    2,258.58x = 3,115.22 × 2,072.66
  4. Step 4: Simplify right side
    2,258.58x = 6,456,791.89
  5. Step 5: Solve for x
    x = 6,456,791.89/2,258.58
  6. Step 6: Final answer
    x = 2,858.78

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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.