Home / 7,177.31-10,766.42-1,912.26

Finding the Fourth Proportional to 7,177.31, 10,766.42 and 1,912.26

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Solution

The fourth proportional to 7,177.31, 10,766.42 and 1,912.26 is: 2,868.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,177.31 : 10,766.42 = 1,912.26 : x
  2. Step 2: Convert to fraction form
    7,177.31/10,766.42 = 1,912.26/x
  3. Step 3: Cross multiply
    7,177.31x = 10,766.42 × 1,912.26
  4. Step 4: Simplify right side
    7,177.31x = 20,588,171.73
  5. Step 5: Solve for x
    x = 20,588,171.73/7,177.31
  6. Step 6: Final answer
    x = 2,868.51

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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.