Home / 4,147.75-6,219.59-1,809.73

Finding the Fourth Proportional to 4,147.75, 6,219.59 and 1,809.73

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Solution

The fourth proportional to 4,147.75, 6,219.59 and 1,809.73 is: 2,713.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,147.75 : 6,219.59 = 1,809.73 : x
  2. Step 2: Convert to fraction form
    4,147.75/6,219.59 = 1,809.73/x
  3. Step 3: Cross multiply
    4,147.75x = 6,219.59 × 1,809.73
  4. Step 4: Simplify right side
    4,147.75x = 11,255,747.51
  5. Step 5: Solve for x
    x = 11,255,747.51/4,147.75
  6. Step 6: Final answer
    x = 2,713.70

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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.