Home / 7,805.20-11,708.96-2,609.84

Finding the Fourth Proportional to 7,805.20, 11,708.96 and 2,609.84

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Solution

The fourth proportional to 7,805.20, 11,708.96 and 2,609.84 is: 3,915.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,805.20 : 11,708.96 = 2,609.84 : x
  2. Step 2: Convert to fraction form
    7,805.20/11,708.96 = 2,609.84/x
  3. Step 3: Cross multiply
    7,805.20x = 11,708.96 × 2,609.84
  4. Step 4: Simplify right side
    7,805.20x = 30,558,512.17
  5. Step 5: Solve for x
    x = 30,558,512.17/7,805.20
  6. Step 6: Final answer
    x = 3,915.15

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.