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Finding the Fourth Proportional to 2,455.94, 3,388.94 and 1,393.37

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Solution

The fourth proportional to 2,455.94, 3,388.94 and 1,393.37 is: 1,922.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,455.94 : 3,388.94 = 1,393.37 : x
  2. Step 2: Convert to fraction form
    2,455.94/3,388.94 = 1,393.37/x
  3. Step 3: Cross multiply
    2,455.94x = 3,388.94 × 1,393.37
  4. Step 4: Simplify right side
    2,455.94x = 4,722,049.19
  5. Step 5: Solve for x
    x = 4,722,049.19/2,455.94
  6. Step 6: Final answer
    x = 1,922.70

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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.