Home / 2,254.69-3,379.74-1,278.73

Finding the Fourth Proportional to 2,254.69, 3,379.74 and 1,278.73

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Solution

The fourth proportional to 2,254.69, 3,379.74 and 1,278.73 is: 1,916.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,254.69 : 3,379.74 = 1,278.73 : x
  2. Step 2: Convert to fraction form
    2,254.69/3,379.74 = 1,278.73/x
  3. Step 3: Cross multiply
    2,254.69x = 3,379.74 × 1,278.73
  4. Step 4: Simplify right side
    2,254.69x = 4,321,774.93
  5. Step 5: Solve for x
    x = 4,321,774.93/2,254.69
  6. Step 6: Final answer
    x = 1,916.79

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1.5x scale

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.