Home / 5,208.32-7,808.40-2,609.92

Finding the Fourth Proportional to 5,208.32, 7,808.40 and 2,609.92

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Solution

The fourth proportional to 5,208.32, 7,808.40 and 2,609.92 is: 3,912.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,208.32 : 7,808.40 = 2,609.92 : x
  2. Step 2: Convert to fraction form
    5,208.32/7,808.40 = 2,609.92/x
  3. Step 3: Cross multiply
    5,208.32x = 7,808.40 × 2,609.92
  4. Step 4: Simplify right side
    5,208.32x = 20,379,299.33
  5. Step 5: Solve for x
    x = 20,379,299.33/5,208.32
  6. Step 6: Final answer
    x = 3,912.84

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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.