Home / 3,745.62-5,618.45-1,665.13

Finding the Fourth Proportional to 3,745.62, 5,618.45 and 1,665.13

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Solution

The fourth proportional to 3,745.62, 5,618.45 and 1,665.13 is: 2,497.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,745.62 : 5,618.45 = 1,665.13 : x
  2. Step 2: Convert to fraction form
    3,745.62/5,618.45 = 1,665.13/x
  3. Step 3: Cross multiply
    3,745.62x = 5,618.45 × 1,665.13
  4. Step 4: Simplify right side
    3,745.62x = 9,355,449.65
  5. Step 5: Solve for x
    x = 9,355,449.65/3,745.62
  6. Step 6: Final answer
    x = 2,497.70

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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.