Home / 6,239.68-8,611.88-3,721.96

Finding the Fourth Proportional to 6,239.68, 8,611.88 and 3,721.96

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Solution

The fourth proportional to 6,239.68, 8,611.88 and 3,721.96 is: 5,136.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,239.68 : 8,611.88 = 3,721.96 : x
  2. Step 2: Convert to fraction form
    6,239.68/8,611.88 = 3,721.96/x
  3. Step 3: Cross multiply
    6,239.68x = 8,611.88 × 3,721.96
  4. Step 4: Simplify right side
    6,239.68x = 32,053,072.88
  5. Step 5: Solve for x
    x = 32,053,072.88/6,239.68
  6. Step 6: Final answer
    x = 5,136.97

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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.