Home / 4,138.79-6,208.17-1,219.14

Finding the Fourth Proportional to 4,138.79, 6,208.17 and 1,219.14

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Solution

The fourth proportional to 4,138.79, 6,208.17 and 1,219.14 is: 1,828.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,138.79 : 6,208.17 = 1,219.14 : x
  2. Step 2: Convert to fraction form
    4,138.79/6,208.17 = 1,219.14/x
  3. Step 3: Cross multiply
    4,138.79x = 6,208.17 × 1,219.14
  4. Step 4: Simplify right side
    4,138.79x = 7,568,628.37
  5. Step 5: Solve for x
    x = 7,568,628.37/4,138.79
  6. Step 6: Final answer
    x = 1,828.71

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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.