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Finding the Fourth Proportional to 2,388.46, 3,579.45 and 1,774.48

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Solution

The fourth proportional to 2,388.46, 3,579.45 and 1,774.48 is: 2,659.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,388.46 : 3,579.45 = 1,774.48 : x
  2. Step 2: Convert to fraction form
    2,388.46/3,579.45 = 1,774.48/x
  3. Step 3: Cross multiply
    2,388.46x = 3,579.45 × 1,774.48
  4. Step 4: Simplify right side
    2,388.46x = 6,351,662.44
  5. Step 5: Solve for x
    x = 6,351,662.44/2,388.46
  6. Step 6: Final answer
    x = 2,659.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.