Home / 5,455.56-8,182.52-1,992

Finding the Fourth Proportional to 5,455.56, 8,182.52 and 1,992

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Solution

The fourth proportional to 5,455.56, 8,182.52 and 1,992 is: 2,987.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,455.56 : 8,182.52 = 1,992 : x
  2. Step 2: Convert to fraction form
    5,455.56/8,182.52 = 1,992/x
  3. Step 3: Cross multiply
    5,455.56x = 8,182.52 × 1,992
  4. Step 4: Simplify right side
    5,455.56x = 16,299,579.84
  5. Step 5: Solve for x
    x = 16,299,579.84/5,455.56
  6. Step 6: Final answer
    x = 2,987.70

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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.