Home / 3,820.20-5,271.50-2,227.02

Finding the Fourth Proportional to 3,820.20, 5,271.50 and 2,227.02

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Solution

The fourth proportional to 3,820.20, 5,271.50 and 2,227.02 is: 3,073.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,820.20 : 5,271.50 = 2,227.02 : x
  2. Step 2: Convert to fraction form
    3,820.20/5,271.50 = 2,227.02/x
  3. Step 3: Cross multiply
    3,820.20x = 5,271.50 × 2,227.02
  4. Step 4: Simplify right side
    3,820.20x = 11,739,735.93
  5. Step 5: Solve for x
    x = 11,739,735.93/3,820.20
  6. Step 6: Final answer
    x = 3,073.07

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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.