Home / 3,228.58-4,842.06-1,378.78

Finding the Fourth Proportional to 3,228.58, 4,842.06 and 1,378.78

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Solution

The fourth proportional to 3,228.58, 4,842.06 and 1,378.78 is: 2,067.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,228.58 : 4,842.06 = 1,378.78 : x
  2. Step 2: Convert to fraction form
    3,228.58/4,842.06 = 1,378.78/x
  3. Step 3: Cross multiply
    3,228.58x = 4,842.06 × 1,378.78
  4. Step 4: Simplify right side
    3,228.58x = 6,676,135.49
  5. Step 5: Solve for x
    x = 6,676,135.49/3,228.58
  6. Step 6: Final answer
    x = 2,067.82

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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.