Home / 3,974.94-5,485.53-2,182.50

Finding the Fourth Proportional to 3,974.94, 5,485.53 and 2,182.50

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Solution

The fourth proportional to 3,974.94, 5,485.53 and 2,182.50 is: 3,011.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,974.94 : 5,485.53 = 2,182.50 : x
  2. Step 2: Convert to fraction form
    3,974.94/5,485.53 = 2,182.50/x
  3. Step 3: Cross multiply
    3,974.94x = 5,485.53 × 2,182.50
  4. Step 4: Simplify right side
    3,974.94x = 11,972,169.23
  5. Step 5: Solve for x
    x = 11,972,169.23/3,974.94
  6. Step 6: Final answer
    x = 3,011.91

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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.