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Finding the Fourth Proportional to 3,261.63, 4,895.16 and 1,781.22

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Solution

The fourth proportional to 3,261.63, 4,895.16 and 1,781.22 is: 2,673.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,261.63 : 4,895.16 = 1,781.22 : x
  2. Step 2: Convert to fraction form
    3,261.63/4,895.16 = 1,781.22/x
  3. Step 3: Cross multiply
    3,261.63x = 4,895.16 × 1,781.22
  4. Step 4: Simplify right side
    3,261.63x = 8,719,356.90
  5. Step 5: Solve for x
    x = 8,719,356.90/3,261.63
  6. Step 6: Final answer
    x = 2,673.31

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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.