Home / 2,765.75-4,148.61-2,277.78

Finding the Fourth Proportional to 2,765.75, 4,148.61 and 2,277.78

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Solution

The fourth proportional to 2,765.75, 4,148.61 and 2,277.78 is: 3,416.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,765.75 : 4,148.61 = 2,277.78 : x
  2. Step 2: Convert to fraction form
    2,765.75/4,148.61 = 2,277.78/x
  3. Step 3: Cross multiply
    2,765.75x = 4,148.61 × 2,277.78
  4. Step 4: Simplify right side
    2,765.75x = 9,449,620.89
  5. Step 5: Solve for x
    x = 9,449,620.89/2,765.75
  6. Step 6: Final answer
    x = 3,416.66

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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.