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Finding the Fourth Proportional to 2,886.62, 3,983.54 and 1,627.99

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Solution

The fourth proportional to 2,886.62, 3,983.54 and 1,627.99 is: 2,246.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,886.62 : 3,983.54 = 1,627.99 : x
  2. Step 2: Convert to fraction form
    2,886.62/3,983.54 = 1,627.99/x
  3. Step 3: Cross multiply
    2,886.62x = 3,983.54 × 1,627.99
  4. Step 4: Simplify right side
    2,886.62x = 6,485,163.28
  5. Step 5: Solve for x
    x = 6,485,163.28/2,886.62
  6. Step 6: Final answer
    x = 2,246.63

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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.