Home / 7,819.47-10,790.87-4,234.45

Finding the Fourth Proportional to 7,819.47, 10,790.87 and 4,234.45

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Solution

The fourth proportional to 7,819.47, 10,790.87 and 4,234.45 is: 5,843.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,819.47 : 10,790.87 = 4,234.45 : x
  2. Step 2: Convert to fraction form
    7,819.47/10,790.87 = 4,234.45/x
  3. Step 3: Cross multiply
    7,819.47x = 10,790.87 × 4,234.45
  4. Step 4: Simplify right side
    7,819.47x = 45,693,399.47
  5. Step 5: Solve for x
    x = 45,693,399.47/7,819.47
  6. Step 6: Final answer
    x = 5,843.54

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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.