Home / 2,768.69-3,821.60-1,776.62

Finding the Fourth Proportional to 2,768.69, 3,821.60 and 1,776.62

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Solution

The fourth proportional to 2,768.69, 3,821.60 and 1,776.62 is: 2,452.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,768.69 : 3,821.60 = 1,776.62 : x
  2. Step 2: Convert to fraction form
    2,768.69/3,821.60 = 1,776.62/x
  3. Step 3: Cross multiply
    2,768.69x = 3,821.60 × 1,776.62
  4. Step 4: Simplify right side
    2,768.69x = 6,789,530.99
  5. Step 5: Solve for x
    x = 6,789,530.99/2,768.69
  6. Step 6: Final answer
    x = 2,452.25

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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.