Home / 3,416.40-5,121.60-1,660.52

Finding the Fourth Proportional to 3,416.40, 5,121.60 and 1,660.52

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Solution

The fourth proportional to 3,416.40, 5,121.60 and 1,660.52 is: 2,489.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,416.40 : 5,121.60 = 1,660.52 : x
  2. Step 2: Convert to fraction form
    3,416.40/5,121.60 = 1,660.52/x
  3. Step 3: Cross multiply
    3,416.40x = 5,121.60 × 1,660.52
  4. Step 4: Simplify right side
    3,416.40x = 8,504,519.23
  5. Step 5: Solve for x
    x = 8,504,519.23/3,416.40
  6. Step 6: Final answer
    x = 2,489.32

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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.