Home / 3,623.46-5,435.31-2,639.28

Finding the Fourth Proportional to 3,623.46, 5,435.31 and 2,639.28

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Solution

The fourth proportional to 3,623.46, 5,435.31 and 2,639.28 is: 3,959.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,623.46 : 5,435.31 = 2,639.28 : x
  2. Step 2: Convert to fraction form
    3,623.46/5,435.31 = 2,639.28/x
  3. Step 3: Cross multiply
    3,623.46x = 5,435.31 × 2,639.28
  4. Step 4: Simplify right side
    3,623.46x = 14,345,304.98
  5. Step 5: Solve for x
    x = 14,345,304.98/3,623.46
  6. Step 6: Final answer
    x = 3,959.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.