Home / 3,100.09-4,650.94-1,020.42

Finding the Fourth Proportional to 3,100.09, 4,650.94 and 1,020.42

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Solution

The fourth proportional to 3,100.09, 4,650.94 and 1,020.42 is: 1,530.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,100.09 : 4,650.94 = 1,020.42 : x
  2. Step 2: Convert to fraction form
    3,100.09/4,650.94 = 1,020.42/x
  3. Step 3: Cross multiply
    3,100.09x = 4,650.94 × 1,020.42
  4. Step 4: Simplify right side
    3,100.09x = 4,745,912.19
  5. Step 5: Solve for x
    x = 4,745,912.19/3,100.09
  6. Step 6: Final answer
    x = 1,530.89

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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.