Home / 2,018.30-3,027.26-719.70

Finding the Fourth Proportional to 2,018.30, 3,027.26 and 719.70

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Solution

The fourth proportional to 2,018.30, 3,027.26 and 719.70 is: 1,079.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,018.30 : 3,027.26 = 719.70 : x
  2. Step 2: Convert to fraction form
    2,018.30/3,027.26 = 719.70/x
  3. Step 3: Cross multiply
    2,018.30x = 3,027.26 × 719.70
  4. Step 4: Simplify right side
    2,018.30x = 2,178,719.02
  5. Step 5: Solve for x
    x = 2,178,719.02/2,018.30
  6. Step 6: Final answer
    x = 1,079.48

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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.