Home / 1,975.09-2,725.60-1,078.83

Finding the Fourth Proportional to 1,975.09, 2,725.60 and 1,078.83

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Solution

The fourth proportional to 1,975.09, 2,725.60 and 1,078.83 is: 1,488.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975.09 : 2,725.60 = 1,078.83 : x
  2. Step 2: Convert to fraction form
    1,975.09/2,725.60 = 1,078.83/x
  3. Step 3: Cross multiply
    1,975.09x = 2,725.60 × 1,078.83
  4. Step 4: Simplify right side
    1,975.09x = 2,940,450.18
  5. Step 5: Solve for x
    x = 2,940,450.18/1,975.09
  6. Step 6: Final answer
    x = 1,488.77

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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.