Home / 3,280.68-4,918.42-1,636.38

Finding the Fourth Proportional to 3,280.68, 4,918.42 and 1,636.38

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Solution

The fourth proportional to 3,280.68, 4,918.42 and 1,636.38 is: 2,453.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.68 : 4,918.42 = 1,636.38 : x
  2. Step 2: Convert to fraction form
    3,280.68/4,918.42 = 1,636.38/x
  3. Step 3: Cross multiply
    3,280.68x = 4,918.42 × 1,636.38
  4. Step 4: Simplify right side
    3,280.68x = 8,048,404.12
  5. Step 5: Solve for x
    x = 8,048,404.12/3,280.68
  6. Step 6: Final answer
    x = 2,453.27

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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.