Home / 7,740.21-11,610.28-2,546.09

Finding the Fourth Proportional to 7,740.21, 11,610.28 and 2,546.09

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Solution

The fourth proportional to 7,740.21, 11,610.28 and 2,546.09 is: 3,819.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,740.21 : 11,610.28 = 2,546.09 : x
  2. Step 2: Convert to fraction form
    7,740.21/11,610.28 = 2,546.09/x
  3. Step 3: Cross multiply
    7,740.21x = 11,610.28 × 2,546.09
  4. Step 4: Simplify right side
    7,740.21x = 29,560,817.81
  5. Step 5: Solve for x
    x = 29,560,817.81/7,740.21
  6. Step 6: Final answer
    x = 3,819.12

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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.