Home / 5,485.16-8,229.18-2,198.36

Finding the Fourth Proportional to 5,485.16, 8,229.18 and 2,198.36

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Solution

The fourth proportional to 5,485.16, 8,229.18 and 2,198.36 is: 3,298.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,485.16 : 8,229.18 = 2,198.36 : x
  2. Step 2: Convert to fraction form
    5,485.16/8,229.18 = 2,198.36/x
  3. Step 3: Cross multiply
    5,485.16x = 8,229.18 × 2,198.36
  4. Step 4: Simplify right side
    5,485.16x = 18,090,700.14
  5. Step 5: Solve for x
    x = 18,090,700.14/5,485.16
  6. Step 6: Final answer
    x = 3,298.12

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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.