Home / 2,166.97-3,251.27-1,289.98

Finding the Fourth Proportional to 2,166.97, 3,251.27 and 1,289.98

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Solution

The fourth proportional to 2,166.97, 3,251.27 and 1,289.98 is: 1,935.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,166.97 : 3,251.27 = 1,289.98 : x
  2. Step 2: Convert to fraction form
    2,166.97/3,251.27 = 1,289.98/x
  3. Step 3: Cross multiply
    2,166.97x = 3,251.27 × 1,289.98
  4. Step 4: Simplify right side
    2,166.97x = 4,194,073.27
  5. Step 5: Solve for x
    x = 4,194,073.27/2,166.97
  6. Step 6: Final answer
    x = 1,935.46

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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.