Home / 5,150.49-7,107.62-2,912.79

Finding the Fourth Proportional to 5,150.49, 7,107.62 and 2,912.79

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Solution

The fourth proportional to 5,150.49, 7,107.62 and 2,912.79 is: 4,019.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,150.49 : 7,107.62 = 2,912.79 : x
  2. Step 2: Convert to fraction form
    5,150.49/7,107.62 = 2,912.79/x
  3. Step 3: Cross multiply
    5,150.49x = 7,107.62 × 2,912.79
  4. Step 4: Simplify right side
    5,150.49x = 20,703,016.55
  5. Step 5: Solve for x
    x = 20,703,016.55/5,150.49
  6. Step 6: Final answer
    x = 4,019.62

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1.5x scale

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.