Home / 2,819.97-3,887.06-2,221.52

Finding the Fourth Proportional to 2,819.97, 3,887.06 and 2,221.52

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Solution

The fourth proportional to 2,819.97, 3,887.06 and 2,221.52 is: 3,062.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819.97 : 3,887.06 = 2,221.52 : x
  2. Step 2: Convert to fraction form
    2,819.97/3,887.06 = 2,221.52/x
  3. Step 3: Cross multiply
    2,819.97x = 3,887.06 × 2,221.52
  4. Step 4: Simplify right side
    2,819.97x = 8,635,150.99
  5. Step 5: Solve for x
    x = 8,635,150.99/2,819.97
  6. Step 6: Final answer
    x = 3,062.14

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1.5x scale

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.