Home / 1,962.93-2,708.71-1,078.54

Finding the Fourth Proportional to 1,962.93, 2,708.71 and 1,078.54

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Solution

The fourth proportional to 1,962.93, 2,708.71 and 1,078.54 is: 1,488.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,962.93 : 2,708.71 = 1,078.54 : x
  2. Step 2: Convert to fraction form
    1,962.93/2,708.71 = 1,078.54/x
  3. Step 3: Cross multiply
    1,962.93x = 2,708.71 × 1,078.54
  4. Step 4: Simplify right side
    1,962.93x = 2,921,452.08
  5. Step 5: Solve for x
    x = 2,921,452.08/1,962.93
  6. Step 6: Final answer
    x = 1,488.31

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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.