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Finding the Fourth Proportional to 2,398.40, 3,308.96 and 1,350.48

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Solution

The fourth proportional to 2,398.40, 3,308.96 and 1,350.48 is: 1,863.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,398.40 : 3,308.96 = 1,350.48 : x
  2. Step 2: Convert to fraction form
    2,398.40/3,308.96 = 1,350.48/x
  3. Step 3: Cross multiply
    2,398.40x = 3,308.96 × 1,350.48
  4. Step 4: Simplify right side
    2,398.40x = 4,468,684.30
  5. Step 5: Solve for x
    x = 4,468,684.30/2,398.40
  6. Step 6: Final answer
    x = 1,863.19

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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.