Home / 3,635.28-5,450.40-1,992.60

Finding the Fourth Proportional to 3,635.28, 5,450.40 and 1,992.60

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Solution

The fourth proportional to 3,635.28, 5,450.40 and 1,992.60 is: 2,987.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,635.28 : 5,450.40 = 1,992.60 : x
  2. Step 2: Convert to fraction form
    3,635.28/5,450.40 = 1,992.60/x
  3. Step 3: Cross multiply
    3,635.28x = 5,450.40 × 1,992.60
  4. Step 4: Simplify right side
    3,635.28x = 10,860,467.04
  5. Step 5: Solve for x
    x = 10,860,467.04/3,635.28
  6. Step 6: Final answer
    x = 2,987.52

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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.