Home / 3,079.89-4,622.58-1,620.09

Finding the Fourth Proportional to 3,079.89, 4,622.58 and 1,620.09

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Solution

The fourth proportional to 3,079.89, 4,622.58 and 1,620.09 is: 2,431.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,079.89 : 4,622.58 = 1,620.09 : x
  2. Step 2: Convert to fraction form
    3,079.89/4,622.58 = 1,620.09/x
  3. Step 3: Cross multiply
    3,079.89x = 4,622.58 × 1,620.09
  4. Step 4: Simplify right side
    3,079.89x = 7,488,995.63
  5. Step 5: Solve for x
    x = 7,488,995.63/3,079.89
  6. Step 6: Final answer
    x = 2,431.58

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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.