Home / 3,745.68-5,618.54-1,665.19

Finding the Fourth Proportional to 3,745.68, 5,618.54 and 1,665.19

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Solution

The fourth proportional to 3,745.68, 5,618.54 and 1,665.19 is: 2,497.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,745.68 : 5,618.54 = 1,665.19 : x
  2. Step 2: Convert to fraction form
    3,745.68/5,618.54 = 1,665.19/x
  3. Step 3: Cross multiply
    3,745.68x = 5,618.54 × 1,665.19
  4. Step 4: Simplify right side
    3,745.68x = 9,355,936.62
  5. Step 5: Solve for x
    x = 9,355,936.62/3,745.68
  6. Step 6: Final answer
    x = 2,497.79

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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.