Home / 4,609.26-6,911.85-1,321.61

Finding the Fourth Proportional to 4,609.26, 6,911.85 and 1,321.61

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Solution

The fourth proportional to 4,609.26, 6,911.85 and 1,321.61 is: 1,981.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,609.26 : 6,911.85 = 1,321.61 : x
  2. Step 2: Convert to fraction form
    4,609.26/6,911.85 = 1,321.61/x
  3. Step 3: Cross multiply
    4,609.26x = 6,911.85 × 1,321.61
  4. Step 4: Simplify right side
    4,609.26x = 9,134,735.52
  5. Step 5: Solve for x
    x = 9,134,735.52/4,609.26
  6. Step 6: Final answer
    x = 1,981.82

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.