Home / 2,945.75-4,065.35-1,619.47

Finding the Fourth Proportional to 2,945.75, 4,065.35 and 1,619.47

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Solution

The fourth proportional to 2,945.75, 4,065.35 and 1,619.47 is: 2,234.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945.75 : 4,065.35 = 1,619.47 : x
  2. Step 2: Convert to fraction form
    2,945.75/4,065.35 = 1,619.47/x
  3. Step 3: Cross multiply
    2,945.75x = 4,065.35 × 1,619.47
  4. Step 4: Simplify right side
    2,945.75x = 6,583,694.10
  5. Step 5: Solve for x
    x = 6,583,694.10/2,945.75
  6. Step 6: Final answer
    x = 2,234.98

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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.