Home / 6,289.70-8,680.27-3,771.91

Finding the Fourth Proportional to 6,289.70, 8,680.27 and 3,771.91

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Solution

The fourth proportional to 6,289.70, 8,680.27 and 3,771.91 is: 5,205.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,289.70 : 8,680.27 = 3,771.91 : x
  2. Step 2: Convert to fraction form
    6,289.70/8,680.27 = 3,771.91/x
  3. Step 3: Cross multiply
    6,289.70x = 8,680.27 × 3,771.91
  4. Step 4: Simplify right side
    6,289.70x = 32,741,153.81
  5. Step 5: Solve for x
    x = 32,741,153.81/6,289.70
  6. Step 6: Final answer
    x = 5,205.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.