Home / 7,078.35-9,768.67-4,245.84

Finding the Fourth Proportional to 7,078.35, 9,768.67 and 4,245.84

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Solution

The fourth proportional to 7,078.35, 9,768.67 and 4,245.84 is: 5,859.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,078.35 : 9,768.67 = 4,245.84 : x
  2. Step 2: Convert to fraction form
    7,078.35/9,768.67 = 4,245.84/x
  3. Step 3: Cross multiply
    7,078.35x = 9,768.67 × 4,245.84
  4. Step 4: Simplify right side
    7,078.35x = 41,476,160.99
  5. Step 5: Solve for x
    x = 41,476,160.99/7,078.35
  6. Step 6: Final answer
    x = 5,859.58

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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.