Home / 2,778.10-4,163.50-1,135.87

Finding the Fourth Proportional to 2,778.10, 4,163.50 and 1,135.87

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Solution

The fourth proportional to 2,778.10, 4,163.50 and 1,135.87 is: 1,702.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778.10 : 4,163.50 = 1,135.87 : x
  2. Step 2: Convert to fraction form
    2,778.10/4,163.50 = 1,135.87/x
  3. Step 3: Cross multiply
    2,778.10x = 4,163.50 × 1,135.87
  4. Step 4: Simplify right side
    2,778.10x = 4,729,194.75
  5. Step 5: Solve for x
    x = 4,729,194.75/2,778.10
  6. Step 6: Final answer
    x = 1,702.31

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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.