Home / 3,209.28-4,811.68-1,749.12

Finding the Fourth Proportional to 3,209.28, 4,811.68 and 1,749.12

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Solution

The fourth proportional to 3,209.28, 4,811.68 and 1,749.12 is: 2,622.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,209.28 : 4,811.68 = 1,749.12 : x
  2. Step 2: Convert to fraction form
    3,209.28/4,811.68 = 1,749.12/x
  3. Step 3: Cross multiply
    3,209.28x = 4,811.68 × 1,749.12
  4. Step 4: Simplify right side
    3,209.28x = 8,416,205.72
  5. Step 5: Solve for x
    x = 8,416,205.72/3,209.28
  6. Step 6: Final answer
    x = 2,622.46

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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.