Home / 3,611.70-5,416.20-2,512.80

Finding the Fourth Proportional to 3,611.70, 5,416.20 and 2,512.80

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Solution

The fourth proportional to 3,611.70, 5,416.20 and 2,512.80 is: 3,768.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,611.70 : 5,416.20 = 2,512.80 : x
  2. Step 2: Convert to fraction form
    3,611.70/5,416.20 = 2,512.80/x
  3. Step 3: Cross multiply
    3,611.70x = 5,416.20 × 2,512.80
  4. Step 4: Simplify right side
    3,611.70x = 13,609,827.36
  5. Step 5: Solve for x
    x = 13,609,827.36/3,611.70
  6. Step 6: Final answer
    x = 3,768.26

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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.