Home / 2,945.99-4,065.12-1,619.61

Finding the Fourth Proportional to 2,945.99, 4,065.12 and 1,619.61

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Solution

The fourth proportional to 2,945.99, 4,065.12 and 1,619.61 is: 2,234.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945.99 : 4,065.12 = 1,619.61 : x
  2. Step 2: Convert to fraction form
    2,945.99/4,065.12 = 1,619.61/x
  3. Step 3: Cross multiply
    2,945.99x = 4,065.12 × 1,619.61
  4. Step 4: Simplify right side
    2,945.99x = 6,583,909.00
  5. Step 5: Solve for x
    x = 6,583,909.00/2,945.99
  6. Step 6: Final answer
    x = 2,234.88

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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.