Home / 2,146.95-3,218.25-1,356.90

Finding the Fourth Proportional to 2,146.95, 3,218.25 and 1,356.90

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Solution

The fourth proportional to 2,146.95, 3,218.25 and 1,356.90 is: 2,033.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,146.95 : 3,218.25 = 1,356.90 : x
  2. Step 2: Convert to fraction form
    2,146.95/3,218.25 = 1,356.90/x
  3. Step 3: Cross multiply
    2,146.95x = 3,218.25 × 1,356.90
  4. Step 4: Simplify right side
    2,146.95x = 4,366,843.43
  5. Step 5: Solve for x
    x = 4,366,843.43/2,146.95
  6. Step 6: Final answer
    x = 2,033.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.