Home / 5,212.40-7,814.37-2,091.02

Finding the Fourth Proportional to 5,212.40, 7,814.37 and 2,091.02

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Solution

The fourth proportional to 5,212.40, 7,814.37 and 2,091.02 is: 3,134.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,212.40 : 7,814.37 = 2,091.02 : x
  2. Step 2: Convert to fraction form
    5,212.40/7,814.37 = 2,091.02/x
  3. Step 3: Cross multiply
    5,212.40x = 7,814.37 × 2,091.02
  4. Step 4: Simplify right side
    5,212.40x = 16,340,003.96
  5. Step 5: Solve for x
    x = 16,340,003.96/5,212.40
  6. Step 6: Final answer
    x = 3,134.83

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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.