Home / 2,431.98-3,647.88-1,198.98

Finding the Fourth Proportional to 2,431.98, 3,647.88 and 1,198.98

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Solution

The fourth proportional to 2,431.98, 3,647.88 and 1,198.98 is: 1,798.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,431.98 : 3,647.88 = 1,198.98 : x
  2. Step 2: Convert to fraction form
    2,431.98/3,647.88 = 1,198.98/x
  3. Step 3: Cross multiply
    2,431.98x = 3,647.88 × 1,198.98
  4. Step 4: Simplify right side
    2,431.98x = 4,373,735.16
  5. Step 5: Solve for x
    x = 4,373,735.16/2,431.98
  6. Step 6: Final answer
    x = 1,798.43

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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.