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Finding the Fourth Proportional to 7,172.63, 10,759.34 and 2,555.63

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Solution

The fourth proportional to 7,172.63, 10,759.34 and 2,555.63 is: 3,833.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,172.63 : 10,759.34 = 2,555.63 : x
  2. Step 2: Convert to fraction form
    7,172.63/10,759.34 = 2,555.63/x
  3. Step 3: Cross multiply
    7,172.63x = 10,759.34 × 2,555.63
  4. Step 4: Simplify right side
    7,172.63x = 27,496,844.68
  5. Step 5: Solve for x
    x = 27,496,844.68/7,172.63
  6. Step 6: Final answer
    x = 3,833.58

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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.