Home / 5,487.58-8,231.34-2,198.32

Finding the Fourth Proportional to 5,487.58, 8,231.34 and 2,198.32

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Solution

The fourth proportional to 5,487.58, 8,231.34 and 2,198.32 is: 3,297.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,487.58 : 8,231.34 = 2,198.32 : x
  2. Step 2: Convert to fraction form
    5,487.58/8,231.34 = 2,198.32/x
  3. Step 3: Cross multiply
    5,487.58x = 8,231.34 × 2,198.32
  4. Step 4: Simplify right side
    5,487.58x = 18,095,119.35
  5. Step 5: Solve for x
    x = 18,095,119.35/5,487.58
  6. Step 6: Final answer
    x = 3,297.47

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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.