Home / 1,227.63-1,839.87-1,072.83

Finding the Fourth Proportional to 1,227.63, 1,839.87 and 1,072.83

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Solution

The fourth proportional to 1,227.63, 1,839.87 and 1,072.83 is: 1,607.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227.63 : 1,839.87 = 1,072.83 : x
  2. Step 2: Convert to fraction form
    1,227.63/1,839.87 = 1,072.83/x
  3. Step 3: Cross multiply
    1,227.63x = 1,839.87 × 1,072.83
  4. Step 4: Simplify right side
    1,227.63x = 1,973,867.73
  5. Step 5: Solve for x
    x = 1,973,867.73/1,227.63
  6. Step 6: Final answer
    x = 1,607.87

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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.