Home / 3,995.02-5,518.07-2,821.33

Finding the Fourth Proportional to 3,995.02, 5,518.07 and 2,821.33

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Solution

The fourth proportional to 3,995.02, 5,518.07 and 2,821.33 is: 3,896.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,995.02 : 5,518.07 = 2,821.33 : x
  2. Step 2: Convert to fraction form
    3,995.02/5,518.07 = 2,821.33/x
  3. Step 3: Cross multiply
    3,995.02x = 5,518.07 × 2,821.33
  4. Step 4: Simplify right side
    3,995.02x = 15,568,296.43
  5. Step 5: Solve for x
    x = 15,568,296.43/3,995.02
  6. Step 6: Final answer
    x = 3,896.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.