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Finding the Fourth Proportional to 3,879.59, 5,819.23 and 957.82

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Solution

The fourth proportional to 3,879.59, 5,819.23 and 957.82 is: 1,436.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,879.59 : 5,819.23 = 957.82 : x
  2. Step 2: Convert to fraction form
    3,879.59/5,819.23 = 957.82/x
  3. Step 3: Cross multiply
    3,879.59x = 5,819.23 × 957.82
  4. Step 4: Simplify right side
    3,879.59x = 5,573,740.99
  5. Step 5: Solve for x
    x = 5,573,740.99/3,879.59
  6. Step 6: Final answer
    x = 1,436.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.