Home / 2,027.28-2,797.68-1,187.52

Finding the Fourth Proportional to 2,027.28, 2,797.68 and 1,187.52

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Solution

The fourth proportional to 2,027.28, 2,797.68 and 1,187.52 is: 1,638.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,027.28 : 2,797.68 = 1,187.52 : x
  2. Step 2: Convert to fraction form
    2,027.28/2,797.68 = 1,187.52/x
  3. Step 3: Cross multiply
    2,027.28x = 2,797.68 × 1,187.52
  4. Step 4: Simplify right side
    2,027.28x = 3,322,300.95
  5. Step 5: Solve for x
    x = 3,322,300.95/2,027.28
  6. Step 6: Final answer
    x = 1,638.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.