Home / 5,485.74-8,230.77-2,198.37

Finding the Fourth Proportional to 5,485.74, 8,230.77 and 2,198.37

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Solution

The fourth proportional to 5,485.74, 8,230.77 and 2,198.37 is: 3,298.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,485.74 : 8,230.77 = 2,198.37 : x
  2. Step 2: Convert to fraction form
    5,485.74/8,230.77 = 2,198.37/x
  3. Step 3: Cross multiply
    5,485.74x = 8,230.77 × 2,198.37
  4. Step 4: Simplify right side
    5,485.74x = 18,094,277.84
  5. Step 5: Solve for x
    x = 18,094,277.84/5,485.74
  6. Step 6: Final answer
    x = 3,298.42

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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.