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Finding the Fourth Proportional to 3,636.73, 5,455.55 and 1,786.29

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Solution

The fourth proportional to 3,636.73, 5,455.55 and 1,786.29 is: 2,679.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,636.73 : 5,455.55 = 1,786.29 : x
  2. Step 2: Convert to fraction form
    3,636.73/5,455.55 = 1,786.29/x
  3. Step 3: Cross multiply
    3,636.73x = 5,455.55 × 1,786.29
  4. Step 4: Simplify right side
    3,636.73x = 9,745,178.42
  5. Step 5: Solve for x
    x = 9,745,178.42/3,636.73
  6. Step 6: Final answer
    x = 2,679.65

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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.