Home / 5,818.23-8,727.39-2,120.58

Finding the Fourth Proportional to 5,818.23, 8,727.39 and 2,120.58

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Solution

The fourth proportional to 5,818.23, 8,727.39 and 2,120.58 is: 3,180.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,818.23 : 8,727.39 = 2,120.58 : x
  2. Step 2: Convert to fraction form
    5,818.23/8,727.39 = 2,120.58/x
  3. Step 3: Cross multiply
    5,818.23x = 8,727.39 × 2,120.58
  4. Step 4: Simplify right side
    5,818.23x = 18,507,128.69
  5. Step 5: Solve for x
    x = 18,507,128.69/5,818.23
  6. Step 6: Final answer
    x = 3,180.89

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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.