Home / 4,219.46-5,815.05-3,286.34

Finding the Fourth Proportional to 4,219.46, 5,815.05 and 3,286.34

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Solution

The fourth proportional to 4,219.46, 5,815.05 and 3,286.34 is: 4,529.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,219.46 : 5,815.05 = 3,286.34 : x
  2. Step 2: Convert to fraction form
    4,219.46/5,815.05 = 3,286.34/x
  3. Step 3: Cross multiply
    4,219.46x = 5,815.05 × 3,286.34
  4. Step 4: Simplify right side
    4,219.46x = 19,110,231.42
  5. Step 5: Solve for x
    x = 19,110,231.42/4,219.46
  6. Step 6: Final answer
    x = 4,529.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.