Home / 2,209.37-3,049.21-1,277.87

Finding the Fourth Proportional to 2,209.37, 3,049.21 and 1,277.87

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Solution

The fourth proportional to 2,209.37, 3,049.21 and 1,277.87 is: 1,763.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,209.37 : 3,049.21 = 1,277.87 : x
  2. Step 2: Convert to fraction form
    2,209.37/3,049.21 = 1,277.87/x
  3. Step 3: Cross multiply
    2,209.37x = 3,049.21 × 1,277.87
  4. Step 4: Simplify right side
    2,209.37x = 3,896,493.98
  5. Step 5: Solve for x
    x = 3,896,493.98/2,209.37
  6. Step 6: Final answer
    x = 1,763.62

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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.