Home / 2,788.89-3,847.56-1,609.73

Finding the Fourth Proportional to 2,788.89, 3,847.56 and 1,609.73

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Solution

The fourth proportional to 2,788.89, 3,847.56 and 1,609.73 is: 2,220.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.89 : 3,847.56 = 1,609.73 : x
  2. Step 2: Convert to fraction form
    2,788.89/3,847.56 = 1,609.73/x
  3. Step 3: Cross multiply
    2,788.89x = 3,847.56 × 1,609.73
  4. Step 4: Simplify right side
    2,788.89x = 6,193,532.76
  5. Step 5: Solve for x
    x = 6,193,532.76/2,788.89
  6. Step 6: Final answer
    x = 2,220.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.