Home / 3,904.80-5,388.39-2,225.97

Finding the Fourth Proportional to 3,904.80, 5,388.39 and 2,225.97

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Solution

The fourth proportional to 3,904.80, 5,388.39 and 2,225.97 is: 3,071.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,904.80 : 5,388.39 = 2,225.97 : x
  2. Step 2: Convert to fraction form
    3,904.80/5,388.39 = 2,225.97/x
  3. Step 3: Cross multiply
    3,904.80x = 5,388.39 × 2,225.97
  4. Step 4: Simplify right side
    3,904.80x = 11,994,394.49
  5. Step 5: Solve for x
    x = 11,994,394.49/3,904.80
  6. Step 6: Final answer
    x = 3,071.71

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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.