Home / 4,121.22-6,183.70-1,931.38

Finding the Fourth Proportional to 4,121.22, 6,183.70 and 1,931.38

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Solution

The fourth proportional to 4,121.22, 6,183.70 and 1,931.38 is: 2,897.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,121.22 : 6,183.70 = 1,931.38 : x
  2. Step 2: Convert to fraction form
    4,121.22/6,183.70 = 1,931.38/x
  3. Step 3: Cross multiply
    4,121.22x = 6,183.70 × 1,931.38
  4. Step 4: Simplify right side
    4,121.22x = 11,943,074.51
  5. Step 5: Solve for x
    x = 11,943,074.51/4,121.22
  6. Step 6: Final answer
    x = 2,897.95

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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.