Home / 7,136.35-10,704.21-1,871.26

Finding the Fourth Proportional to 7,136.35, 10,704.21 and 1,871.26

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Solution

The fourth proportional to 7,136.35, 10,704.21 and 1,871.26 is: 2,806.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,136.35 : 10,704.21 = 1,871.26 : x
  2. Step 2: Convert to fraction form
    7,136.35/10,704.21 = 1,871.26/x
  3. Step 3: Cross multiply
    7,136.35x = 10,704.21 × 1,871.26
  4. Step 4: Simplify right side
    7,136.35x = 20,030,360.00
  5. Step 5: Solve for x
    x = 20,030,360.00/7,136.35
  6. Step 6: Final answer
    x = 2,806.81

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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.