Home / 7,819.25-11,728.88-3,922.74

Finding the Fourth Proportional to 7,819.25, 11,728.88 and 3,922.74

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Solution

The fourth proportional to 7,819.25, 11,728.88 and 3,922.74 is: 5,884.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,819.25 : 11,728.88 = 3,922.74 : x
  2. Step 2: Convert to fraction form
    7,819.25/11,728.88 = 3,922.74/x
  3. Step 3: Cross multiply
    7,819.25x = 11,728.88 × 3,922.74
  4. Step 4: Simplify right side
    7,819.25x = 46,009,327.12
  5. Step 5: Solve for x
    x = 46,009,327.12/7,819.25
  6. Step 6: Final answer
    x = 5,884.11

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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.