Home / 2,788.20-3,847.14-1,608.48

Finding the Fourth Proportional to 2,788.20, 3,847.14 and 1,608.48

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Solution

The fourth proportional to 2,788.20, 3,847.14 and 1,608.48 is: 2,219.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.20 : 3,847.14 = 1,608.48 : x
  2. Step 2: Convert to fraction form
    2,788.20/3,847.14 = 1,608.48/x
  3. Step 3: Cross multiply
    2,788.20x = 3,847.14 × 1,608.48
  4. Step 4: Simplify right side
    2,788.20x = 6,188,047.75
  5. Step 5: Solve for x
    x = 6,188,047.75/2,788.20
  6. Step 6: Final answer
    x = 2,219.37

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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.