Home / 1,226.27-1,839.08-348.58

Finding the Fourth Proportional to 1,226.27, 1,839.08 and 348.58

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Solution

The fourth proportional to 1,226.27, 1,839.08 and 348.58 is: 522.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226.27 : 1,839.08 = 348.58 : x
  2. Step 2: Convert to fraction form
    1,226.27/1,839.08 = 348.58/x
  3. Step 3: Cross multiply
    1,226.27x = 1,839.08 × 348.58
  4. Step 4: Simplify right side
    1,226.27x = 641,069.68
  5. Step 5: Solve for x
    x = 641,069.68/1,226.27
  6. Step 6: Final answer
    x = 522.78

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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.