Home / 2,938.95-4,054.86-2,195.37

Finding the Fourth Proportional to 2,938.95, 4,054.86 and 2,195.37

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Solution

The fourth proportional to 2,938.95, 4,054.86 and 2,195.37 is: 3,028.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,938.95 : 4,054.86 = 2,195.37 : x
  2. Step 2: Convert to fraction form
    2,938.95/4,054.86 = 2,195.37/x
  3. Step 3: Cross multiply
    2,938.95x = 4,054.86 × 2,195.37
  4. Step 4: Simplify right side
    2,938.95x = 8,901,918.00
  5. Step 5: Solve for x
    x = 8,901,918.00/2,938.95
  6. Step 6: Final answer
    x = 3,028.95

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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.