Home / 2,728.77-3,765.54-1,609.75

Finding the Fourth Proportional to 2,728.77, 3,765.54 and 1,609.75

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Solution

The fourth proportional to 2,728.77, 3,765.54 and 1,609.75 is: 2,221.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,728.77 : 3,765.54 = 1,609.75 : x
  2. Step 2: Convert to fraction form
    2,728.77/3,765.54 = 1,609.75/x
  3. Step 3: Cross multiply
    2,728.77x = 3,765.54 × 1,609.75
  4. Step 4: Simplify right side
    2,728.77x = 6,061,578.02
  5. Step 5: Solve for x
    x = 6,061,578.02/2,728.77
  6. Step 6: Final answer
    x = 2,221.36

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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.