Home / 3,745.44-5,617.80-1,147.68

Finding the Fourth Proportional to 3,745.44, 5,617.80 and 1,147.68

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Solution

The fourth proportional to 3,745.44, 5,617.80 and 1,147.68 is: 1,721.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,745.44 : 5,617.80 = 1,147.68 : x
  2. Step 2: Convert to fraction form
    3,745.44/5,617.80 = 1,147.68/x
  3. Step 3: Cross multiply
    3,745.44x = 5,617.80 × 1,147.68
  4. Step 4: Simplify right side
    3,745.44x = 6,447,436.70
  5. Step 5: Solve for x
    x = 6,447,436.70/3,745.44
  6. Step 6: Final answer
    x = 1,721.41

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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.