Home / 7,819.88-10,788.24-4,630.80

Finding the Fourth Proportional to 7,819.88, 10,788.24 and 4,630.80

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Solution

The fourth proportional to 7,819.88, 10,788.24 and 4,630.80 is: 6,388.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,819.88 : 10,788.24 = 4,630.80 : x
  2. Step 2: Convert to fraction form
    7,819.88/10,788.24 = 4,630.80/x
  3. Step 3: Cross multiply
    7,819.88x = 10,788.24 × 4,630.80
  4. Step 4: Simplify right side
    7,819.88x = 49,958,181.79
  5. Step 5: Solve for x
    x = 49,958,181.79/7,819.88
  6. Step 6: Final answer
    x = 6,388.62

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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.