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Finding the Fourth Proportional to 3,361.97, 4,639.15 and 1,869.66

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Solution

The fourth proportional to 3,361.97, 4,639.15 and 1,869.66 is: 2,579.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,361.97 : 4,639.15 = 1,869.66 : x
  2. Step 2: Convert to fraction form
    3,361.97/4,639.15 = 1,869.66/x
  3. Step 3: Cross multiply
    3,361.97x = 4,639.15 × 1,869.66
  4. Step 4: Simplify right side
    3,361.97x = 8,673,633.19
  5. Step 5: Solve for x
    x = 8,673,633.19/3,361.97
  6. Step 6: Final answer
    x = 2,579.93

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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.