Home / 7,819.39-10,790.85-4,282.75

Finding the Fourth Proportional to 7,819.39, 10,790.85 and 4,282.75

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Solution

The fourth proportional to 7,819.39, 10,790.85 and 4,282.75 is: 5,910.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,819.39 : 10,790.85 = 4,282.75 : x
  2. Step 2: Convert to fraction form
    7,819.39/10,790.85 = 4,282.75/x
  3. Step 3: Cross multiply
    7,819.39x = 10,790.85 × 4,282.75
  4. Step 4: Simplify right side
    7,819.39x = 46,214,512.84
  5. Step 5: Solve for x
    x = 46,214,512.84/7,819.39
  6. Step 6: Final answer
    x = 5,910.25

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Half scale
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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.