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Finding the Fourth Proportional to 3,455.94, 4,769.37 and 1,963.86

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Solution

The fourth proportional to 3,455.94, 4,769.37 and 1,963.86 is: 2,710.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,455.94 : 4,769.37 = 1,963.86 : x
  2. Step 2: Convert to fraction form
    3,455.94/4,769.37 = 1,963.86/x
  3. Step 3: Cross multiply
    3,455.94x = 4,769.37 × 1,963.86
  4. Step 4: Simplify right side
    3,455.94x = 9,366,374.97
  5. Step 5: Solve for x
    x = 9,366,374.97/3,455.94
  6. Step 6: Final answer
    x = 2,710.22

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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.