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Finding the Fourth Proportional to 3,159.97, 4,361.06 and 2,361.90

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Solution

The fourth proportional to 3,159.97, 4,361.06 and 2,361.90 is: 3,259.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,159.97 : 4,361.06 = 2,361.90 : x
  2. Step 2: Convert to fraction form
    3,159.97/4,361.06 = 2,361.90/x
  3. Step 3: Cross multiply
    3,159.97x = 4,361.06 × 2,361.90
  4. Step 4: Simplify right side
    3,159.97x = 10,300,387.61
  5. Step 5: Solve for x
    x = 10,300,387.61/3,159.97
  6. Step 6: Final answer
    x = 3,259.65

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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.