Home / 5,385.96-8,081.82-2,465.64

Finding the Fourth Proportional to 5,385.96, 8,081.82 and 2,465.64

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Solution

The fourth proportional to 5,385.96, 8,081.82 and 2,465.64 is: 3,699.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,385.96 : 8,081.82 = 2,465.64 : x
  2. Step 2: Convert to fraction form
    5,385.96/8,081.82 = 2,465.64/x
  3. Step 3: Cross multiply
    5,385.96x = 8,081.82 × 2,465.64
  4. Step 4: Simplify right side
    5,385.96x = 19,926,858.66
  5. Step 5: Solve for x
    x = 19,926,858.66/5,385.96
  6. Step 6: Final answer
    x = 3,699.78

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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.