Home / 2,018.21-3,027.29-719.37

Finding the Fourth Proportional to 2,018.21, 3,027.29 and 719.37

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Solution

The fourth proportional to 2,018.21, 3,027.29 and 719.37 is: 1,079.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,018.21 : 3,027.29 = 719.37 : x
  2. Step 2: Convert to fraction form
    2,018.21/3,027.29 = 719.37/x
  3. Step 3: Cross multiply
    2,018.21x = 3,027.29 × 719.37
  4. Step 4: Simplify right side
    2,018.21x = 2,177,738.01
  5. Step 5: Solve for x
    x = 2,177,738.01/2,018.21
  6. Step 6: Final answer
    x = 1,079.05

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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.