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Finding the Fourth Proportional to 2,899.73, 4,003.29 and 1,906.71

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Solution

The fourth proportional to 2,899.73, 4,003.29 and 1,906.71 is: 2,632.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,899.73 : 4,003.29 = 1,906.71 : x
  2. Step 2: Convert to fraction form
    2,899.73/4,003.29 = 1,906.71/x
  3. Step 3: Cross multiply
    2,899.73x = 4,003.29 × 1,906.71
  4. Step 4: Simplify right side
    2,899.73x = 7,633,113.08
  5. Step 5: Solve for x
    x = 7,633,113.08/2,899.73
  6. Step 6: Final answer
    x = 2,632.36

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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.