Home / 1,260.57-1,890.94-336.12

Finding the Fourth Proportional to 1,260.57, 1,890.94 and 336.12

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Solution

The fourth proportional to 1,260.57, 1,890.94 and 336.12 is: 504.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260.57 : 1,890.94 = 336.12 : x
  2. Step 2: Convert to fraction form
    1,260.57/1,890.94 = 336.12/x
  3. Step 3: Cross multiply
    1,260.57x = 1,890.94 × 336.12
  4. Step 4: Simplify right side
    1,260.57x = 635,582.75
  5. Step 5: Solve for x
    x = 635,582.75/1,260.57
  6. Step 6: Final answer
    x = 504.20

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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.