Home / 1,857-2,786.31-1,367.76

Finding the Fourth Proportional to 1,857, 2,786.31 and 1,367.76

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Solution

The fourth proportional to 1,857, 2,786.31 and 1,367.76 is: 2,052.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,857 : 2,786.31 = 1,367.76 : x
  2. Step 2: Convert to fraction form
    1,857/2,786.31 = 1,367.76/x
  3. Step 3: Cross multiply
    1,857x = 2,786.31 × 1,367.76
  4. Step 4: Simplify right side
    1,857x = 3,811,003.37
  5. Step 5: Solve for x
    x = 3,811,003.37/1,857
  6. Step 6: Final answer
    x = 2,052.24

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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.