Home / 2,576.36-3,861.07-1,879.76

Finding the Fourth Proportional to 2,576.36, 3,861.07 and 1,879.76

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Solution

The fourth proportional to 2,576.36, 3,861.07 and 1,879.76 is: 2,817.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,576.36 : 3,861.07 = 1,879.76 : x
  2. Step 2: Convert to fraction form
    2,576.36/3,861.07 = 1,879.76/x
  3. Step 3: Cross multiply
    2,576.36x = 3,861.07 × 1,879.76
  4. Step 4: Simplify right side
    2,576.36x = 7,257,889.90
  5. Step 5: Solve for x
    x = 7,257,889.90/2,576.36
  6. Step 6: Final answer
    x = 2,817.11

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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.