Home / 5,455.20-8,182.80-2,682.30

Finding the Fourth Proportional to 5,455.20, 8,182.80 and 2,682.30

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Solution

The fourth proportional to 5,455.20, 8,182.80 and 2,682.30 is: 4,023.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,455.20 : 8,182.80 = 2,682.30 : x
  2. Step 2: Convert to fraction form
    5,455.20/8,182.80 = 2,682.30/x
  3. Step 3: Cross multiply
    5,455.20x = 8,182.80 × 2,682.30
  4. Step 4: Simplify right side
    5,455.20x = 21,948,724.44
  5. Step 5: Solve for x
    x = 21,948,724.44/5,455.20
  6. Step 6: Final answer
    x = 4,023.45

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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.