Home / 3,228.22-4,842.78-1,119.61

Finding the Fourth Proportional to 3,228.22, 4,842.78 and 1,119.61

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Solution

The fourth proportional to 3,228.22, 4,842.78 and 1,119.61 is: 1,679.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,228.22 : 4,842.78 = 1,119.61 : x
  2. Step 2: Convert to fraction form
    3,228.22/4,842.78 = 1,119.61/x
  3. Step 3: Cross multiply
    3,228.22x = 4,842.78 × 1,119.61
  4. Step 4: Simplify right side
    3,228.22x = 5,422,024.92
  5. Step 5: Solve for x
    x = 5,422,024.92/3,228.22
  6. Step 6: Final answer
    x = 1,679.57

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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.