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Finding the Fourth Proportional to 3,659.94, 5,480.19 and 2,861.34

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Solution

The fourth proportional to 3,659.94, 5,480.19 and 2,861.34 is: 4,284.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,659.94 : 5,480.19 = 2,861.34 : x
  2. Step 2: Convert to fraction form
    3,659.94/5,480.19 = 2,861.34/x
  3. Step 3: Cross multiply
    3,659.94x = 5,480.19 × 2,861.34
  4. Step 4: Simplify right side
    3,659.94x = 15,680,686.85
  5. Step 5: Solve for x
    x = 15,680,686.85/3,659.94
  6. Step 6: Final answer
    x = 4,284.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.