Home / 2,628.14-3,943.98-1,089.14

Finding the Fourth Proportional to 2,628.14, 3,943.98 and 1,089.14

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Solution

The fourth proportional to 2,628.14, 3,943.98 and 1,089.14 is: 1,634.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628.14 : 3,943.98 = 1,089.14 : x
  2. Step 2: Convert to fraction form
    2,628.14/3,943.98 = 1,089.14/x
  3. Step 3: Cross multiply
    2,628.14x = 3,943.98 × 1,089.14
  4. Step 4: Simplify right side
    2,628.14x = 4,295,546.38
  5. Step 5: Solve for x
    x = 4,295,546.38/2,628.14
  6. Step 6: Final answer
    x = 1,634.44

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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.