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Finding the Fourth Proportional to 2,659.94, 3,672.87 and 2,379.68

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Solution

The fourth proportional to 2,659.94, 3,672.87 and 2,379.68 is: 3,285.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,659.94 : 3,672.87 = 2,379.68 : x
  2. Step 2: Convert to fraction form
    2,659.94/3,672.87 = 2,379.68/x
  3. Step 3: Cross multiply
    2,659.94x = 3,672.87 × 2,379.68
  4. Step 4: Simplify right side
    2,659.94x = 8,740,255.28
  5. Step 5: Solve for x
    x = 8,740,255.28/2,659.94
  6. Step 6: Final answer
    x = 3,285.88

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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.