Home / 7,276.91-10,921.85-3,383.51

Finding the Fourth Proportional to 7,276.91, 10,921.85 and 3,383.51

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Solution

The fourth proportional to 7,276.91, 10,921.85 and 3,383.51 is: 5,078.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,276.91 : 10,921.85 = 3,383.51 : x
  2. Step 2: Convert to fraction form
    7,276.91/10,921.85 = 3,383.51/x
  3. Step 3: Cross multiply
    7,276.91x = 10,921.85 × 3,383.51
  4. Step 4: Simplify right side
    7,276.91x = 36,954,188.69
  5. Step 5: Solve for x
    x = 36,954,188.69/7,276.91
  6. Step 6: Final answer
    x = 5,078.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.