Home / 7,149.05-10,725.75-3,450.59

Finding the Fourth Proportional to 7,149.05, 10,725.75 and 3,450.59

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Solution

The fourth proportional to 7,149.05, 10,725.75 and 3,450.59 is: 5,176.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,149.05 : 10,725.75 = 3,450.59 : x
  2. Step 2: Convert to fraction form
    7,149.05/10,725.75 = 3,450.59/x
  3. Step 3: Cross multiply
    7,149.05x = 10,725.75 × 3,450.59
  4. Step 4: Simplify right side
    7,149.05x = 37,010,148.44
  5. Step 5: Solve for x
    x = 37,010,148.44/7,149.05
  6. Step 6: Final answer
    x = 5,176.93

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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.