Home / 2,955.38-4,078.80-1,910.48

Finding the Fourth Proportional to 2,955.38, 4,078.80 and 1,910.48

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Solution

The fourth proportional to 2,955.38, 4,078.80 and 1,910.48 is: 2,636.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,955.38 : 4,078.80 = 1,910.48 : x
  2. Step 2: Convert to fraction form
    2,955.38/4,078.80 = 1,910.48/x
  3. Step 3: Cross multiply
    2,955.38x = 4,078.80 × 1,910.48
  4. Step 4: Simplify right side
    2,955.38x = 7,792,465.82
  5. Step 5: Solve for x
    x = 7,792,465.82/2,955.38
  6. Step 6: Final answer
    x = 2,636.71

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1.5x scale

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.