Home / 3,465.44-5,185.20-2,005.28

Finding the Fourth Proportional to 3,465.44, 5,185.20 and 2,005.28

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Solution

The fourth proportional to 3,465.44, 5,185.20 and 2,005.28 is: 3,000.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,465.44 : 5,185.20 = 2,005.28 : x
  2. Step 2: Convert to fraction form
    3,465.44/5,185.20 = 2,005.28/x
  3. Step 3: Cross multiply
    3,465.44x = 5,185.20 × 2,005.28
  4. Step 4: Simplify right side
    3,465.44x = 10,397,777.86
  5. Step 5: Solve for x
    x = 10,397,777.86/3,465.44
  6. Step 6: Final answer
    x = 3,000.42

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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.