Home / 3,638.08-5,449.74-1,903

Finding the Fourth Proportional to 3,638.08, 5,449.74 and 1,903

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Solution

The fourth proportional to 3,638.08, 5,449.74 and 1,903 is: 2,850.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,638.08 : 5,449.74 = 1,903 : x
  2. Step 2: Convert to fraction form
    3,638.08/5,449.74 = 1,903/x
  3. Step 3: Cross multiply
    3,638.08x = 5,449.74 × 1,903
  4. Step 4: Simplify right side
    3,638.08x = 10,370,855.22
  5. Step 5: Solve for x
    x = 10,370,855.22/3,638.08
  6. Step 6: Final answer
    x = 2,850.64

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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.