Home / 5,818.09-8,729.46-2,120.59

Finding the Fourth Proportional to 5,818.09, 8,729.46 and 2,120.59

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Solution

The fourth proportional to 5,818.09, 8,729.46 and 2,120.59 is: 3,181.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,818.09 : 8,729.46 = 2,120.59 : x
  2. Step 2: Convert to fraction form
    5,818.09/8,729.46 = 2,120.59/x
  3. Step 3: Cross multiply
    5,818.09x = 8,729.46 × 2,120.59
  4. Step 4: Simplify right side
    5,818.09x = 18,511,605.58
  5. Step 5: Solve for x
    x = 18,511,605.58/5,818.09
  6. Step 6: Final answer
    x = 3,181.73

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1.5x scale

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.