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Finding the Fourth Proportional to 6,198.40, 9,290.40 and 2,498.80

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Solution

The fourth proportional to 6,198.40, 9,290.40 and 2,498.80 is: 3,745.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,198.40 : 9,290.40 = 2,498.80 : x
  2. Step 2: Convert to fraction form
    6,198.40/9,290.40 = 2,498.80/x
  3. Step 3: Cross multiply
    6,198.40x = 9,290.40 × 2,498.80
  4. Step 4: Simplify right side
    6,198.40x = 23,214,851.52
  5. Step 5: Solve for x
    x = 23,214,851.52/6,198.40
  6. Step 6: Final answer
    x = 3,745.30

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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.