Home / 7,615.26-11,420.46-2,419.92

Finding the Fourth Proportional to 7,615.26, 11,420.46 and 2,419.92

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Solution

The fourth proportional to 7,615.26, 11,420.46 and 2,419.92 is: 3,629.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,615.26 : 11,420.46 = 2,419.92 : x
  2. Step 2: Convert to fraction form
    7,615.26/11,420.46 = 2,419.92/x
  3. Step 3: Cross multiply
    7,615.26x = 11,420.46 × 2,419.92
  4. Step 4: Simplify right side
    7,615.26x = 27,636,599.56
  5. Step 5: Solve for x
    x = 27,636,599.56/7,615.26
  6. Step 6: Final answer
    x = 3,629.11

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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.