Home / 3,361.80-4,639.44-1,869.87

Finding the Fourth Proportional to 3,361.80, 4,639.44 and 1,869.87

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Solution

The fourth proportional to 3,361.80, 4,639.44 and 1,869.87 is: 2,580.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,361.80 : 4,639.44 = 1,869.87 : x
  2. Step 2: Convert to fraction form
    3,361.80/4,639.44 = 1,869.87/x
  3. Step 3: Cross multiply
    3,361.80x = 4,639.44 × 1,869.87
  4. Step 4: Simplify right side
    3,361.80x = 8,675,174.08
  5. Step 5: Solve for x
    x = 8,675,174.08/3,361.80
  6. Step 6: Final answer
    x = 2,580.51

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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.