Home / 7,819.87-10,788.38-4,792.22

Finding the Fourth Proportional to 7,819.87, 10,788.38 and 4,792.22

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Solution

The fourth proportional to 7,819.87, 10,788.38 and 4,792.22 is: 6,611.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,819.87 : 10,788.38 = 4,792.22 : x
  2. Step 2: Convert to fraction form
    7,819.87/10,788.38 = 4,792.22/x
  3. Step 3: Cross multiply
    7,819.87x = 10,788.38 × 4,792.22
  4. Step 4: Simplify right side
    7,819.87x = 51,700,290.40
  5. Step 5: Solve for x
    x = 51,700,290.40/7,819.87
  6. Step 6: Final answer
    x = 6,611.40

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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.