Home / 2,788.22-3,847.80-1,609.37

Finding the Fourth Proportional to 2,788.22, 3,847.80 and 1,609.37

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Solution

The fourth proportional to 2,788.22, 3,847.80 and 1,609.37 is: 2,220.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.22 : 3,847.80 = 1,609.37 : x
  2. Step 2: Convert to fraction form
    2,788.22/3,847.80 = 1,609.37/x
  3. Step 3: Cross multiply
    2,788.22x = 3,847.80 × 1,609.37
  4. Step 4: Simplify right side
    2,788.22x = 6,192,535.11
  5. Step 5: Solve for x
    x = 6,192,535.11/2,788.22
  6. Step 6: Final answer
    x = 2,220.96

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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.