Home / 3,636.46-5,455.50-1,992.16

Finding the Fourth Proportional to 3,636.46, 5,455.50 and 1,992.16

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Solution

The fourth proportional to 3,636.46, 5,455.50 and 1,992.16 is: 2,988.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,636.46 : 5,455.50 = 1,992.16 : x
  2. Step 2: Convert to fraction form
    3,636.46/5,455.50 = 1,992.16/x
  3. Step 3: Cross multiply
    3,636.46x = 5,455.50 × 1,992.16
  4. Step 4: Simplify right side
    3,636.46x = 10,868,228.88
  5. Step 5: Solve for x
    x = 10,868,228.88/3,636.46
  6. Step 6: Final answer
    x = 2,988.68

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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.