Home / 3,113.82-4,664.28-1,383.66

Finding the Fourth Proportional to 3,113.82, 4,664.28 and 1,383.66

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Solution

The fourth proportional to 3,113.82, 4,664.28 and 1,383.66 is: 2,072.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,113.82 : 4,664.28 = 1,383.66 : x
  2. Step 2: Convert to fraction form
    3,113.82/4,664.28 = 1,383.66/x
  3. Step 3: Cross multiply
    3,113.82x = 4,664.28 × 1,383.66
  4. Step 4: Simplify right side
    3,113.82x = 6,453,777.66
  5. Step 5: Solve for x
    x = 6,453,777.66/3,113.82
  6. Step 6: Final answer
    x = 2,072.62

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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.