Home / 7,172.43-10,759.30-2,790.22

Finding the Fourth Proportional to 7,172.43, 10,759.30 and 2,790.22

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Solution

The fourth proportional to 7,172.43, 10,759.30 and 2,790.22 is: 4,185.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,172.43 : 10,759.30 = 2,790.22 : x
  2. Step 2: Convert to fraction form
    7,172.43/10,759.30 = 2,790.22/x
  3. Step 3: Cross multiply
    7,172.43x = 10,759.30 × 2,790.22
  4. Step 4: Simplify right side
    7,172.43x = 30,020,760.25
  5. Step 5: Solve for x
    x = 30,020,760.25/7,172.43
  6. Step 6: Final answer
    x = 4,185.58

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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.