Home / 1,330.69-1,996.76-949.09

Finding the Fourth Proportional to 1,330.69, 1,996.76 and 949.09

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Solution

The fourth proportional to 1,330.69, 1,996.76 and 949.09 is: 1,424.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330.69 : 1,996.76 = 949.09 : x
  2. Step 2: Convert to fraction form
    1,330.69/1,996.76 = 949.09/x
  3. Step 3: Cross multiply
    1,330.69x = 1,996.76 × 949.09
  4. Step 4: Simplify right side
    1,330.69x = 1,895,104.95
  5. Step 5: Solve for x
    x = 1,895,104.95/1,330.69
  6. Step 6: Final answer
    x = 1,424.15

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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.