Home / 2,018.24-3,027.38-718.80

Finding the Fourth Proportional to 2,018.24, 3,027.38 and 718.80

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Solution

The fourth proportional to 2,018.24, 3,027.38 and 718.80 is: 1,078.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,018.24 : 3,027.38 = 718.80 : x
  2. Step 2: Convert to fraction form
    2,018.24/3,027.38 = 718.80/x
  3. Step 3: Cross multiply
    2,018.24x = 3,027.38 × 718.80
  4. Step 4: Simplify right side
    2,018.24x = 2,176,080.74
  5. Step 5: Solve for x
    x = 2,176,080.74/2,018.24
  6. Step 6: Final answer
    x = 1,078.21

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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.