Home / 7,819.35-10,790.90-4,282.55

Finding the Fourth Proportional to 7,819.35, 10,790.90 and 4,282.55

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Solution

The fourth proportional to 7,819.35, 10,790.90 and 4,282.55 is: 5,910.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,819.35 : 10,790.90 = 4,282.55 : x
  2. Step 2: Convert to fraction form
    7,819.35/10,790.90 = 4,282.55/x
  3. Step 3: Cross multiply
    7,819.35x = 10,790.90 × 4,282.55
  4. Step 4: Simplify right side
    7,819.35x = 46,212,568.80
  5. Step 5: Solve for x
    x = 46,212,568.80/7,819.35
  6. Step 6: Final answer
    x = 5,910.03

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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.