Home / 3,636.08-5,453.84-1,992.16

Finding the Fourth Proportional to 3,636.08, 5,453.84 and 1,992.16

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Solution

The fourth proportional to 3,636.08, 5,453.84 and 1,992.16 is: 2,988.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,636.08 : 5,453.84 = 1,992.16 : x
  2. Step 2: Convert to fraction form
    3,636.08/5,453.84 = 1,992.16/x
  3. Step 3: Cross multiply
    3,636.08x = 5,453.84 × 1,992.16
  4. Step 4: Simplify right side
    3,636.08x = 10,864,921.89
  5. Step 5: Solve for x
    x = 10,864,921.89/3,636.08
  6. Step 6: Final answer
    x = 2,988.09

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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.