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Finding the Fourth Proportional to 3,745.98, 5,619.78 and 2,103.48

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Solution

The fourth proportional to 3,745.98, 5,619.78 and 2,103.48 is: 3,155.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,745.98 : 5,619.78 = 2,103.48 : x
  2. Step 2: Convert to fraction form
    3,745.98/5,619.78 = 2,103.48/x
  3. Step 3: Cross multiply
    3,745.98x = 5,619.78 × 2,103.48
  4. Step 4: Simplify right side
    3,745.98x = 11,821,094.83
  5. Step 5: Solve for x
    x = 11,821,094.83/3,745.98
  6. Step 6: Final answer
    x = 3,155.67

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1.5x scale

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.