Home / 1,930.91-2,664.97-1,145.48

Finding the Fourth Proportional to 1,930.91, 2,664.97 and 1,145.48

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Solution

The fourth proportional to 1,930.91, 2,664.97 and 1,145.48 is: 1,580.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,930.91 : 2,664.97 = 1,145.48 : x
  2. Step 2: Convert to fraction form
    1,930.91/2,664.97 = 1,145.48/x
  3. Step 3: Cross multiply
    1,930.91x = 2,664.97 × 1,145.48
  4. Step 4: Simplify right side
    1,930.91x = 3,052,653.65
  5. Step 5: Solve for x
    x = 3,052,653.65/1,930.91
  6. Step 6: Final answer
    x = 1,580.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.