Home / 3,681.44-5,080.25-2,002.80

Finding the Fourth Proportional to 3,681.44, 5,080.25 and 2,002.80

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Solution

The fourth proportional to 3,681.44, 5,080.25 and 2,002.80 is: 2,763.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,681.44 : 5,080.25 = 2,002.80 : x
  2. Step 2: Convert to fraction form
    3,681.44/5,080.25 = 2,002.80/x
  3. Step 3: Cross multiply
    3,681.44x = 5,080.25 × 2,002.80
  4. Step 4: Simplify right side
    3,681.44x = 10,174,724.70
  5. Step 5: Solve for x
    x = 10,174,724.70/3,681.44
  6. Step 6: Final answer
    x = 2,763.79

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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.