Home / 4,118.40-6,206.40-3,859.20

Finding the Fourth Proportional to 4,118.40, 6,206.40 and 3,859.20

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Solution

The fourth proportional to 4,118.40, 6,206.40 and 3,859.20 is: 5,815.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,118.40 : 6,206.40 = 3,859.20 : x
  2. Step 2: Convert to fraction form
    4,118.40/6,206.40 = 3,859.20/x
  3. Step 3: Cross multiply
    4,118.40x = 6,206.40 × 3,859.20
  4. Step 4: Simplify right side
    4,118.40x = 23,951,738.88
  5. Step 5: Solve for x
    x = 23,951,738.88/4,118.40
  6. Step 6: Final answer
    x = 5,815.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.