Home / 2,018.08-3,027.12-1,111.84

Finding the Fourth Proportional to 2,018.08, 3,027.12 and 1,111.84

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Solution

The fourth proportional to 2,018.08, 3,027.12 and 1,111.84 is: 1,667.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,018.08 : 3,027.12 = 1,111.84 : x
  2. Step 2: Convert to fraction form
    2,018.08/3,027.12 = 1,111.84/x
  3. Step 3: Cross multiply
    2,018.08x = 3,027.12 × 1,111.84
  4. Step 4: Simplify right side
    2,018.08x = 3,365,673.10
  5. Step 5: Solve for x
    x = 3,365,673.10/2,018.08
  6. Step 6: Final answer
    x = 1,667.76

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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.