Home / 3,465.21-5,197.66-1,273.78

Finding the Fourth Proportional to 3,465.21, 5,197.66 and 1,273.78

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Solution

The fourth proportional to 3,465.21, 5,197.66 and 1,273.78 is: 1,910.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,465.21 : 5,197.66 = 1,273.78 : x
  2. Step 2: Convert to fraction form
    3,465.21/5,197.66 = 1,273.78/x
  3. Step 3: Cross multiply
    3,465.21x = 5,197.66 × 1,273.78
  4. Step 4: Simplify right side
    3,465.21x = 6,620,668.99
  5. Step 5: Solve for x
    x = 6,620,668.99/3,465.21
  6. Step 6: Final answer
    x = 1,910.61

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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.