Home / 3,821.14-5,731.68-2,271.88

Finding the Fourth Proportional to 3,821.14, 5,731.68 and 2,271.88

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Solution

The fourth proportional to 3,821.14, 5,731.68 and 2,271.88 is: 3,407.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.14 : 5,731.68 = 2,271.88 : x
  2. Step 2: Convert to fraction form
    3,821.14/5,731.68 = 2,271.88/x
  3. Step 3: Cross multiply
    3,821.14x = 5,731.68 × 2,271.88
  4. Step 4: Simplify right side
    3,821.14x = 13,021,689.16
  5. Step 5: Solve for x
    x = 13,021,689.16/3,821.14
  6. Step 6: Final answer
    x = 3,407.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.