Home / 5,485.68-8,218.08-3,399.12

Finding the Fourth Proportional to 5,485.68, 8,218.08 and 3,399.12

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Solution

The fourth proportional to 5,485.68, 8,218.08 and 3,399.12 is: 5,092.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,485.68 : 8,218.08 = 3,399.12 : x
  2. Step 2: Convert to fraction form
    5,485.68/8,218.08 = 3,399.12/x
  3. Step 3: Cross multiply
    5,485.68x = 8,218.08 × 3,399.12
  4. Step 4: Simplify right side
    5,485.68x = 27,934,240.09
  5. Step 5: Solve for x
    x = 27,934,240.09/5,485.68
  6. Step 6: Final answer
    x = 5,092.21

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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.