Home / 3,479.13-5,215.05-1,628.75

Finding the Fourth Proportional to 3,479.13, 5,215.05 and 1,628.75

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Solution

The fourth proportional to 3,479.13, 5,215.05 and 1,628.75 is: 2,441.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,479.13 : 5,215.05 = 1,628.75 : x
  2. Step 2: Convert to fraction form
    3,479.13/5,215.05 = 1,628.75/x
  3. Step 3: Cross multiply
    3,479.13x = 5,215.05 × 1,628.75
  4. Step 4: Simplify right side
    3,479.13x = 8,494,025.73
  5. Step 5: Solve for x
    x = 8,494,025.73/3,479.13
  6. Step 6: Final answer
    x = 2,441.42

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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.