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Finding the Fourth Proportional to 2,398.63, 3,310.11 and 1,350.71

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Solution

The fourth proportional to 2,398.63, 3,310.11 and 1,350.71 is: 1,863.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,398.63 : 3,310.11 = 1,350.71 : x
  2. Step 2: Convert to fraction form
    2,398.63/3,310.11 = 1,350.71/x
  3. Step 3: Cross multiply
    2,398.63x = 3,310.11 × 1,350.71
  4. Step 4: Simplify right side
    2,398.63x = 4,470,998.68
  5. Step 5: Solve for x
    x = 4,470,998.68/2,398.63
  6. Step 6: Final answer
    x = 1,863.98

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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.