Home / 2,021.13-3,027.96-1,238.99

Finding the Fourth Proportional to 2,021.13, 3,027.96 and 1,238.99

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Solution

The fourth proportional to 2,021.13, 3,027.96 and 1,238.99 is: 1,856.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,021.13 : 3,027.96 = 1,238.99 : x
  2. Step 2: Convert to fraction form
    2,021.13/3,027.96 = 1,238.99/x
  3. Step 3: Cross multiply
    2,021.13x = 3,027.96 × 1,238.99
  4. Step 4: Simplify right side
    2,021.13x = 3,751,597.02
  5. Step 5: Solve for x
    x = 3,751,597.02/2,021.13
  6. Step 6: Final answer
    x = 1,856.19

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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.