Home / 3,855.98-5,321.14-2,177.44

Finding the Fourth Proportional to 3,855.98, 5,321.14 and 2,177.44

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Solution

The fourth proportional to 3,855.98, 5,321.14 and 2,177.44 is: 3,004.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,855.98 : 5,321.14 = 2,177.44 : x
  2. Step 2: Convert to fraction form
    3,855.98/5,321.14 = 2,177.44/x
  3. Step 3: Cross multiply
    3,855.98x = 5,321.14 × 2,177.44
  4. Step 4: Simplify right side
    3,855.98x = 11,586,463.08
  5. Step 5: Solve for x
    x = 11,586,463.08/3,855.98
  6. Step 6: Final answer
    x = 3,004.80

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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.