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Finding the Fourth Proportional to 2,388.89, 3,295 and 2,308.61

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Solution

The fourth proportional to 2,388.89, 3,295 and 2,308.61 is: 3,184.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,388.89 : 3,295 = 2,308.61 : x
  2. Step 2: Convert to fraction form
    2,388.89/3,295 = 2,308.61/x
  3. Step 3: Cross multiply
    2,388.89x = 3,295 × 2,308.61
  4. Step 4: Simplify right side
    2,388.89x = 7,606,869.95
  5. Step 5: Solve for x
    x = 7,606,869.95/2,388.89
  6. Step 6: Final answer
    x = 3,184.27

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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.