Home / 5,818.41-8,727.30-2,119.95

Finding the Fourth Proportional to 5,818.41, 8,727.30 and 2,119.95

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Solution

The fourth proportional to 5,818.41, 8,727.30 and 2,119.95 is: 3,179.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,818.41 : 8,727.30 = 2,119.95 : x
  2. Step 2: Convert to fraction form
    5,818.41/8,727.30 = 2,119.95/x
  3. Step 3: Cross multiply
    5,818.41x = 8,727.30 × 2,119.95
  4. Step 4: Simplify right side
    5,818.41x = 18,501,439.64
  5. Step 5: Solve for x
    x = 18,501,439.64/5,818.41
  6. Step 6: Final answer
    x = 3,179.81

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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.