Home / 7,728.12-11,592.27-2,181.60

Finding the Fourth Proportional to 7,728.12, 11,592.27 and 2,181.60

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Solution

The fourth proportional to 7,728.12, 11,592.27 and 2,181.60 is: 3,272.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,728.12 : 11,592.27 = 2,181.60 : x
  2. Step 2: Convert to fraction form
    7,728.12/11,592.27 = 2,181.60/x
  3. Step 3: Cross multiply
    7,728.12x = 11,592.27 × 2,181.60
  4. Step 4: Simplify right side
    7,728.12x = 25,289,696.23
  5. Step 5: Solve for x
    x = 25,289,696.23/7,728.12
  6. Step 6: Final answer
    x = 3,272.43

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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.