Home / 3,218.24-4,824.12-2,123.12

Finding the Fourth Proportional to 3,218.24, 4,824.12 and 2,123.12

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Solution

The fourth proportional to 3,218.24, 4,824.12 and 2,123.12 is: 3,182.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.24 : 4,824.12 = 2,123.12 : x
  2. Step 2: Convert to fraction form
    3,218.24/4,824.12 = 2,123.12/x
  3. Step 3: Cross multiply
    3,218.24x = 4,824.12 × 2,123.12
  4. Step 4: Simplify right side
    3,218.24x = 10,242,185.65
  5. Step 5: Solve for x
    x = 10,242,185.65/3,218.24
  6. Step 6: Final answer
    x = 3,182.54

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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.