Home / 2,198.32-3,297.36-899.74

Finding the Fourth Proportional to 2,198.32, 3,297.36 and 899.74

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Solution

The fourth proportional to 2,198.32, 3,297.36 and 899.74 is: 1,349.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,198.32 : 3,297.36 = 899.74 : x
  2. Step 2: Convert to fraction form
    2,198.32/3,297.36 = 899.74/x
  3. Step 3: Cross multiply
    2,198.32x = 3,297.36 × 899.74
  4. Step 4: Simplify right side
    2,198.32x = 2,966,766.69
  5. Step 5: Solve for x
    x = 2,966,766.69/2,198.32
  6. Step 6: Final answer
    x = 1,349.56

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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.