Home / 3,450.65-5,172.26-1,693.61

Finding the Fourth Proportional to 3,450.65, 5,172.26 and 1,693.61

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Solution

The fourth proportional to 3,450.65, 5,172.26 and 1,693.61 is: 2,538.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,450.65 : 5,172.26 = 1,693.61 : x
  2. Step 2: Convert to fraction form
    3,450.65/5,172.26 = 1,693.61/x
  3. Step 3: Cross multiply
    3,450.65x = 5,172.26 × 1,693.61
  4. Step 4: Simplify right side
    3,450.65x = 8,759,776.33
  5. Step 5: Solve for x
    x = 8,759,776.33/3,450.65
  6. Step 6: Final answer
    x = 2,538.59

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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.