Home / 5,212.12-7,819.66-2,580.43

Finding the Fourth Proportional to 5,212.12, 7,819.66 and 2,580.43

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Solution

The fourth proportional to 5,212.12, 7,819.66 and 2,580.43 is: 3,871.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,212.12 : 7,819.66 = 2,580.43 : x
  2. Step 2: Convert to fraction form
    5,212.12/7,819.66 = 2,580.43/x
  3. Step 3: Cross multiply
    5,212.12x = 7,819.66 × 2,580.43
  4. Step 4: Simplify right side
    5,212.12x = 20,178,112.84
  5. Step 5: Solve for x
    x = 20,178,112.84/5,212.12
  6. Step 6: Final answer
    x = 3,871.38

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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.