Home / 3,675.11-5,511.50-1,209.38

Finding the Fourth Proportional to 3,675.11, 5,511.50 and 1,209.38

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Solution

The fourth proportional to 3,675.11, 5,511.50 and 1,209.38 is: 1,813.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,675.11 : 5,511.50 = 1,209.38 : x
  2. Step 2: Convert to fraction form
    3,675.11/5,511.50 = 1,209.38/x
  3. Step 3: Cross multiply
    3,675.11x = 5,511.50 × 1,209.38
  4. Step 4: Simplify right side
    3,675.11x = 6,665,464.27
  5. Step 5: Solve for x
    x = 6,665,464.27/3,675.11
  6. Step 6: Final answer
    x = 1,813.68

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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.