Home / 3,198.89-4,798.36-1,997.11

Finding the Fourth Proportional to 3,198.89, 4,798.36 and 1,997.11

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Solution

The fourth proportional to 3,198.89, 4,798.36 and 1,997.11 is: 2,995.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,198.89 : 4,798.36 = 1,997.11 : x
  2. Step 2: Convert to fraction form
    3,198.89/4,798.36 = 1,997.11/x
  3. Step 3: Cross multiply
    3,198.89x = 4,798.36 × 1,997.11
  4. Step 4: Simplify right side
    3,198.89x = 9,582,823.01
  5. Step 5: Solve for x
    x = 9,582,823.01/3,198.89
  6. Step 6: Final answer
    x = 2,995.67

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1.5x scale

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.