Home / 7,136.72-10,706.45-2,206.18

Finding the Fourth Proportional to 7,136.72, 10,706.45 and 2,206.18

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Solution

The fourth proportional to 7,136.72, 10,706.45 and 2,206.18 is: 3,309.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,136.72 : 10,706.45 = 2,206.18 : x
  2. Step 2: Convert to fraction form
    7,136.72/10,706.45 = 2,206.18/x
  3. Step 3: Cross multiply
    7,136.72x = 10,706.45 × 2,206.18
  4. Step 4: Simplify right side
    7,136.72x = 23,620,318.06
  5. Step 5: Solve for x
    x = 23,620,318.06/7,136.72
  6. Step 6: Final answer
    x = 3,309.69

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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.