Home / 7,131.45-10,698.99-2,747.73

Finding the Fourth Proportional to 7,131.45, 10,698.99 and 2,747.73

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Solution

The fourth proportional to 7,131.45, 10,698.99 and 2,747.73 is: 4,122.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,131.45 : 10,698.99 = 2,747.73 : x
  2. Step 2: Convert to fraction form
    7,131.45/10,698.99 = 2,747.73/x
  3. Step 3: Cross multiply
    7,131.45x = 10,698.99 × 2,747.73
  4. Step 4: Simplify right side
    7,131.45x = 29,397,935.79
  5. Step 5: Solve for x
    x = 29,397,935.79/7,131.45
  6. Step 6: Final answer
    x = 4,122.29

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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.