Home / 4,902.96-6,768.40-2,806.68

Finding the Fourth Proportional to 4,902.96, 6,768.40 and 2,806.68

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Solution

The fourth proportional to 4,902.96, 6,768.40 and 2,806.68 is: 3,874.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,902.96 : 6,768.40 = 2,806.68 : x
  2. Step 2: Convert to fraction form
    4,902.96/6,768.40 = 2,806.68/x
  3. Step 3: Cross multiply
    4,902.96x = 6,768.40 × 2,806.68
  4. Step 4: Simplify right side
    4,902.96x = 18,996,732.91
  5. Step 5: Solve for x
    x = 18,996,732.91/4,902.96
  6. Step 6: Final answer
    x = 3,874.54

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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.