Home / 3,882.30-5,818.20-2,784.25

Finding the Fourth Proportional to 3,882.30, 5,818.20 and 2,784.25

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Solution

The fourth proportional to 3,882.30, 5,818.20 and 2,784.25 is: 4,172.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,882.30 : 5,818.20 = 2,784.25 : x
  2. Step 2: Convert to fraction form
    3,882.30/5,818.20 = 2,784.25/x
  3. Step 3: Cross multiply
    3,882.30x = 5,818.20 × 2,784.25
  4. Step 4: Simplify right side
    3,882.30x = 16,199,323.35
  5. Step 5: Solve for x
    x = 16,199,323.35/3,882.30
  6. Step 6: Final answer
    x = 4,172.61

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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.