Home / 4,485.45-6,728.51-1,198.47

Finding the Fourth Proportional to 4,485.45, 6,728.51 and 1,198.47

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Solution

The fourth proportional to 4,485.45, 6,728.51 and 1,198.47 is: 1,797.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,485.45 : 6,728.51 = 1,198.47 : x
  2. Step 2: Convert to fraction form
    4,485.45/6,728.51 = 1,198.47/x
  3. Step 3: Cross multiply
    4,485.45x = 6,728.51 × 1,198.47
  4. Step 4: Simplify right side
    4,485.45x = 8,063,920.38
  5. Step 5: Solve for x
    x = 8,063,920.38/4,485.45
  6. Step 6: Final answer
    x = 1,797.80

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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.