Home / 5,110.84-7,667.88-3,879.64

Finding the Fourth Proportional to 5,110.84, 7,667.88 and 3,879.64

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Solution

The fourth proportional to 5,110.84, 7,667.88 and 3,879.64 is: 5,820.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,110.84 : 7,667.88 = 3,879.64 : x
  2. Step 2: Convert to fraction form
    5,110.84/7,667.88 = 3,879.64/x
  3. Step 3: Cross multiply
    5,110.84x = 7,667.88 × 3,879.64
  4. Step 4: Simplify right side
    5,110.84x = 29,748,613.96
  5. Step 5: Solve for x
    x = 29,748,613.96/5,110.84
  6. Step 6: Final answer
    x = 5,820.69

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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.