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Finding the Fourth Proportional to 2,299.94, 3,170.94 and 1,879.88

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Solution

The fourth proportional to 2,299.94, 3,170.94 and 1,879.88 is: 2,591.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,299.94 : 3,170.94 = 1,879.88 : x
  2. Step 2: Convert to fraction form
    2,299.94/3,170.94 = 1,879.88/x
  3. Step 3: Cross multiply
    2,299.94x = 3,170.94 × 1,879.88
  4. Step 4: Simplify right side
    2,299.94x = 5,960,986.69
  5. Step 5: Solve for x
    x = 5,960,986.69/2,299.94
  6. Step 6: Final answer
    x = 2,591.80

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1.5x scale

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.