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Finding the Fourth Proportional to 3,635.88, 5,455.17 and 1,903.29

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Solution

The fourth proportional to 3,635.88, 5,455.17 and 1,903.29 is: 2,855.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,635.88 : 5,455.17 = 1,903.29 : x
  2. Step 2: Convert to fraction form
    3,635.88/5,455.17 = 1,903.29/x
  3. Step 3: Cross multiply
    3,635.88x = 5,455.17 × 1,903.29
  4. Step 4: Simplify right side
    3,635.88x = 10,382,770.51
  5. Step 5: Solve for x
    x = 10,382,770.51/3,635.88
  6. Step 6: Final answer
    x = 2,855.64

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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.