Home / 5,454.24-8,185.44-2,123.02

Finding the Fourth Proportional to 5,454.24, 8,185.44 and 2,123.02

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Solution

The fourth proportional to 5,454.24, 8,185.44 and 2,123.02 is: 3,186.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,454.24 : 8,185.44 = 2,123.02 : x
  2. Step 2: Convert to fraction form
    5,454.24/8,185.44 = 2,123.02/x
  3. Step 3: Cross multiply
    5,454.24x = 8,185.44 × 2,123.02
  4. Step 4: Simplify right side
    5,454.24x = 17,377,811.90
  5. Step 5: Solve for x
    x = 17,377,811.90/5,454.24
  6. Step 6: Final answer
    x = 3,186.11

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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.