Home / 2,205.03-3,306.49-1,280.85

Finding the Fourth Proportional to 2,205.03, 3,306.49 and 1,280.85

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Solution

The fourth proportional to 2,205.03, 3,306.49 and 1,280.85 is: 1,920.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,205.03 : 3,306.49 = 1,280.85 : x
  2. Step 2: Convert to fraction form
    2,205.03/3,306.49 = 1,280.85/x
  3. Step 3: Cross multiply
    2,205.03x = 3,306.49 × 1,280.85
  4. Step 4: Simplify right side
    2,205.03x = 4,235,119.32
  5. Step 5: Solve for x
    x = 4,235,119.32/2,205.03
  6. Step 6: Final answer
    x = 1,920.67

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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.