Home / 3,185.09-4,395.16-1,787.81

Finding the Fourth Proportional to 3,185.09, 4,395.16 and 1,787.81

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Solution

The fourth proportional to 3,185.09, 4,395.16 and 1,787.81 is: 2,467.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,185.09 : 4,395.16 = 1,787.81 : x
  2. Step 2: Convert to fraction form
    3,185.09/4,395.16 = 1,787.81/x
  3. Step 3: Cross multiply
    3,185.09x = 4,395.16 × 1,787.81
  4. Step 4: Simplify right side
    3,185.09x = 7,857,711.00
  5. Step 5: Solve for x
    x = 7,857,711.00/3,185.09
  6. Step 6: Final answer
    x = 2,467.03

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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.