Home / 7,136.24-10,704.42-3,187.69

Finding the Fourth Proportional to 7,136.24, 10,704.42 and 3,187.69

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Solution

The fourth proportional to 7,136.24, 10,704.42 and 3,187.69 is: 4,781.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,136.24 : 10,704.42 = 3,187.69 : x
  2. Step 2: Convert to fraction form
    7,136.24/10,704.42 = 3,187.69/x
  3. Step 3: Cross multiply
    7,136.24x = 10,704.42 × 3,187.69
  4. Step 4: Simplify right side
    7,136.24x = 34,122,385.97
  5. Step 5: Solve for x
    x = 34,122,385.97/7,136.24
  6. Step 6: Final answer
    x = 4,781.57

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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.