Home / 3,745.72-5,618.20-1,148.68

Finding the Fourth Proportional to 3,745.72, 5,618.20 and 1,148.68

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Solution

The fourth proportional to 3,745.72, 5,618.20 and 1,148.68 is: 1,722.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,745.72 : 5,618.20 = 1,148.68 : x
  2. Step 2: Convert to fraction form
    3,745.72/5,618.20 = 1,148.68/x
  3. Step 3: Cross multiply
    3,745.72x = 5,618.20 × 1,148.68
  4. Step 4: Simplify right side
    3,745.72x = 6,453,513.98
  5. Step 5: Solve for x
    x = 6,453,513.98/3,745.72
  6. Step 6: Final answer
    x = 1,722.90

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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.