Home / 3,990.88-5,504.77-2,496.20

Finding the Fourth Proportional to 3,990.88, 5,504.77 and 2,496.20

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Solution

The fourth proportional to 3,990.88, 5,504.77 and 2,496.20 is: 3,443.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,990.88 : 5,504.77 = 2,496.20 : x
  2. Step 2: Convert to fraction form
    3,990.88/5,504.77 = 2,496.20/x
  3. Step 3: Cross multiply
    3,990.88x = 5,504.77 × 2,496.20
  4. Step 4: Simplify right side
    3,990.88x = 13,740,986.87
  5. Step 5: Solve for x
    x = 13,740,986.87/3,990.88
  6. Step 6: Final answer
    x = 3,443.10

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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.