Home / 3,955.73-5,458.77-2,187.32

Finding the Fourth Proportional to 3,955.73, 5,458.77 and 2,187.32

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Solution

The fourth proportional to 3,955.73, 5,458.77 and 2,187.32 is: 3,018.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,955.73 : 5,458.77 = 2,187.32 : x
  2. Step 2: Convert to fraction form
    3,955.73/5,458.77 = 2,187.32/x
  3. Step 3: Cross multiply
    3,955.73x = 5,458.77 × 2,187.32
  4. Step 4: Simplify right side
    3,955.73x = 11,940,049.50
  5. Step 5: Solve for x
    x = 11,940,049.50/3,955.73
  6. Step 6: Final answer
    x = 3,018.42

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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.