Home / 3,144.75-4,710.96-2,157.45

Finding the Fourth Proportional to 3,144.75, 4,710.96 and 2,157.45

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Solution

The fourth proportional to 3,144.75, 4,710.96 and 2,157.45 is: 3,231.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,144.75 : 4,710.96 = 2,157.45 : x
  2. Step 2: Convert to fraction form
    3,144.75/4,710.96 = 2,157.45/x
  3. Step 3: Cross multiply
    3,144.75x = 4,710.96 × 2,157.45
  4. Step 4: Simplify right side
    3,144.75x = 10,163,660.65
  5. Step 5: Solve for x
    x = 10,163,660.65/3,144.75
  6. Step 6: Final answer
    x = 3,231.95

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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.