Home / 4,819.87-6,651.32-2,830.38

Finding the Fourth Proportional to 4,819.87, 6,651.32 and 2,830.38

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Solution

The fourth proportional to 4,819.87, 6,651.32 and 2,830.38 is: 3,905.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,819.87 : 6,651.32 = 2,830.38 : x
  2. Step 2: Convert to fraction form
    4,819.87/6,651.32 = 2,830.38/x
  3. Step 3: Cross multiply
    4,819.87x = 6,651.32 × 2,830.38
  4. Step 4: Simplify right side
    4,819.87x = 18,825,724.01
  5. Step 5: Solve for x
    x = 18,825,724.01/4,819.87
  6. Step 6: Final answer
    x = 3,905.86

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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.