Home / 2,997.06-4,138.16-1,819.72

Finding the Fourth Proportional to 2,997.06, 4,138.16 and 1,819.72

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Solution

The fourth proportional to 2,997.06, 4,138.16 and 1,819.72 is: 2,512.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,997.06 : 4,138.16 = 1,819.72 : x
  2. Step 2: Convert to fraction form
    2,997.06/4,138.16 = 1,819.72/x
  3. Step 3: Cross multiply
    2,997.06x = 4,138.16 × 1,819.72
  4. Step 4: Simplify right side
    2,997.06x = 7,530,292.52
  5. Step 5: Solve for x
    x = 7,530,292.52/2,997.06
  6. Step 6: Final answer
    x = 2,512.56

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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.