Home / 1,804.80-2,487.78-1,361.94

Finding the Fourth Proportional to 1,804.80, 2,487.78 and 1,361.94

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Solution

The fourth proportional to 1,804.80, 2,487.78 and 1,361.94 is: 1,877.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,804.80 : 2,487.78 = 1,361.94 : x
  2. Step 2: Convert to fraction form
    1,804.80/2,487.78 = 1,361.94/x
  3. Step 3: Cross multiply
    1,804.80x = 2,487.78 × 1,361.94
  4. Step 4: Simplify right side
    1,804.80x = 3,388,207.09
  5. Step 5: Solve for x
    x = 3,388,207.09/1,804.80
  6. Step 6: Final answer
    x = 1,877.33

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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.