Home / 2,431.47-3,646.77-1,198.47

Finding the Fourth Proportional to 2,431.47, 3,646.77 and 1,198.47

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Solution

The fourth proportional to 2,431.47, 3,646.77 and 1,198.47 is: 1,797.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,431.47 : 3,646.77 = 1,198.47 : x
  2. Step 2: Convert to fraction form
    2,431.47/3,646.77 = 1,198.47/x
  3. Step 3: Cross multiply
    2,431.47x = 3,646.77 × 1,198.47
  4. Step 4: Simplify right side
    2,431.47x = 4,370,544.44
  5. Step 5: Solve for x
    x = 4,370,544.44/2,431.47
  6. Step 6: Final answer
    x = 1,797.49

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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.