Home / 3,378.35-5,021.94-3,278.69

Finding the Fourth Proportional to 3,378.35, 5,021.94 and 3,278.69

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Solution

The fourth proportional to 3,378.35, 5,021.94 and 3,278.69 is: 4,873.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.35 : 5,021.94 = 3,278.69 : x
  2. Step 2: Convert to fraction form
    3,378.35/5,021.94 = 3,278.69/x
  3. Step 3: Cross multiply
    3,378.35x = 5,021.94 × 3,278.69
  4. Step 4: Simplify right side
    3,378.35x = 16,465,384.46
  5. Step 5: Solve for x
    x = 16,465,384.46/3,378.35
  6. Step 6: Final answer
    x = 4,873.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.