Home / 3,675.39-5,511.90-1,209.64

Finding the Fourth Proportional to 3,675.39, 5,511.90 and 1,209.64

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Solution

The fourth proportional to 3,675.39, 5,511.90 and 1,209.64 is: 1,814.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,675.39 : 5,511.90 = 1,209.64 : x
  2. Step 2: Convert to fraction form
    3,675.39/5,511.90 = 1,209.64/x
  3. Step 3: Cross multiply
    3,675.39x = 5,511.90 × 1,209.64
  4. Step 4: Simplify right side
    3,675.39x = 6,667,400.94
  5. Step 5: Solve for x
    x = 6,667,400.94/3,675.39
  6. Step 6: Final answer
    x = 1,814.07

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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.