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Finding the Fourth Proportional to 5,285.60, 7,922.22 and 2,651.68

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Solution

The fourth proportional to 5,285.60, 7,922.22 and 2,651.68 is: 3,974.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,285.60 : 7,922.22 = 2,651.68 : x
  2. Step 2: Convert to fraction form
    5,285.60/7,922.22 = 2,651.68/x
  3. Step 3: Cross multiply
    5,285.60x = 7,922.22 × 2,651.68
  4. Step 4: Simplify right side
    5,285.60x = 21,007,192.33
  5. Step 5: Solve for x
    x = 21,007,192.33/5,285.60
  6. Step 6: Final answer
    x = 3,974.42

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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.