Home / 3,974.83-5,485.24-2,182.34

Finding the Fourth Proportional to 3,974.83, 5,485.24 and 2,182.34

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Solution

The fourth proportional to 3,974.83, 5,485.24 and 2,182.34 is: 3,011.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,974.83 : 5,485.24 = 2,182.34 : x
  2. Step 2: Convert to fraction form
    3,974.83/5,485.24 = 2,182.34/x
  3. Step 3: Cross multiply
    3,974.83x = 5,485.24 × 2,182.34
  4. Step 4: Simplify right side
    3,974.83x = 11,970,658.66
  5. Step 5: Solve for x
    x = 11,970,658.66/3,974.83
  6. Step 6: Final answer
    x = 3,011.62

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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.