Home / 3,170.36-4,376.62-2,109.89

Finding the Fourth Proportional to 3,170.36, 4,376.62 and 2,109.89

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Solution

The fourth proportional to 3,170.36, 4,376.62 and 2,109.89 is: 2,912.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,170.36 : 4,376.62 = 2,109.89 : x
  2. Step 2: Convert to fraction form
    3,170.36/4,376.62 = 2,109.89/x
  3. Step 3: Cross multiply
    3,170.36x = 4,376.62 × 2,109.89
  4. Step 4: Simplify right side
    3,170.36x = 9,234,186.77
  5. Step 5: Solve for x
    x = 9,234,186.77/3,170.36
  6. Step 6: Final answer
    x = 2,912.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.