Home / 3,760.61-5,189.19-2,081.80

Finding the Fourth Proportional to 3,760.61, 5,189.19 and 2,081.80

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Solution

The fourth proportional to 3,760.61, 5,189.19 and 2,081.80 is: 2,872.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,760.61 : 5,189.19 = 2,081.80 : x
  2. Step 2: Convert to fraction form
    3,760.61/5,189.19 = 2,081.80/x
  3. Step 3: Cross multiply
    3,760.61x = 5,189.19 × 2,081.80
  4. Step 4: Simplify right side
    3,760.61x = 10,802,855.74
  5. Step 5: Solve for x
    x = 10,802,855.74/3,760.61
  6. Step 6: Final answer
    x = 2,872.63

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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.