Home / 6,289.50-9,435.60-2,129.61

Finding the Fourth Proportional to 6,289.50, 9,435.60 and 2,129.61

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Solution

The fourth proportional to 6,289.50, 9,435.60 and 2,129.61 is: 3,194.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,289.50 : 9,435.60 = 2,129.61 : x
  2. Step 2: Convert to fraction form
    6,289.50/9,435.60 = 2,129.61/x
  3. Step 3: Cross multiply
    6,289.50x = 9,435.60 × 2,129.61
  4. Step 4: Simplify right side
    6,289.50x = 20,094,148.12
  5. Step 5: Solve for x
    x = 20,094,148.12/6,289.50
  6. Step 6: Final answer
    x = 3,194.87

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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.