Home / 4,078.76-6,121.21-1,889.02

Finding the Fourth Proportional to 4,078.76, 6,121.21 and 1,889.02

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Solution

The fourth proportional to 4,078.76, 6,121.21 and 1,889.02 is: 2,834.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.76 : 6,121.21 = 1,889.02 : x
  2. Step 2: Convert to fraction form
    4,078.76/6,121.21 = 1,889.02/x
  3. Step 3: Cross multiply
    4,078.76x = 6,121.21 × 1,889.02
  4. Step 4: Simplify right side
    4,078.76x = 11,563,091.93
  5. Step 5: Solve for x
    x = 11,563,091.93/4,078.76
  6. Step 6: Final answer
    x = 2,834.96

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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.