Home / 2,945.64-4,065.07-1,619.43

Finding the Fourth Proportional to 2,945.64, 4,065.07 and 1,619.43

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Solution

The fourth proportional to 2,945.64, 4,065.07 and 1,619.43 is: 2,234.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945.64 : 4,065.07 = 1,619.43 : x
  2. Step 2: Convert to fraction form
    2,945.64/4,065.07 = 1,619.43/x
  3. Step 3: Cross multiply
    2,945.64x = 4,065.07 × 1,619.43
  4. Step 4: Simplify right side
    2,945.64x = 6,583,092.26
  5. Step 5: Solve for x
    x = 6,583,092.26/2,945.64
  6. Step 6: Final answer
    x = 2,234.86

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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.