Home / 2,768.81-3,819.35-1,824.75

Finding the Fourth Proportional to 2,768.81, 3,819.35 and 1,824.75

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Solution

The fourth proportional to 2,768.81, 3,819.35 and 1,824.75 is: 2,517.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,768.81 : 3,819.35 = 1,824.75 : x
  2. Step 2: Convert to fraction form
    2,768.81/3,819.35 = 1,824.75/x
  3. Step 3: Cross multiply
    2,768.81x = 3,819.35 × 1,824.75
  4. Step 4: Simplify right side
    2,768.81x = 6,969,363.47
  5. Step 5: Solve for x
    x = 6,969,363.47/2,768.81
  6. Step 6: Final answer
    x = 2,517.10

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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.