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Finding the Fourth Proportional to 2,397.87, 3,308.97 and 1,335.60

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Solution

The fourth proportional to 2,397.87, 3,308.97 and 1,335.60 is: 1,843.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,397.87 : 3,308.97 = 1,335.60 : x
  2. Step 2: Convert to fraction form
    2,397.87/3,308.97 = 1,335.60/x
  3. Step 3: Cross multiply
    2,397.87x = 3,308.97 × 1,335.60
  4. Step 4: Simplify right side
    2,397.87x = 4,419,460.33
  5. Step 5: Solve for x
    x = 4,419,460.33/2,397.87
  6. Step 6: Final answer
    x = 1,843.08

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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.