Home / 5,515.39-8,272.88-1,355.41

Finding the Fourth Proportional to 5,515.39, 8,272.88 and 1,355.41

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Solution

The fourth proportional to 5,515.39, 8,272.88 and 1,355.41 is: 2,033.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.39 : 8,272.88 = 1,355.41 : x
  2. Step 2: Convert to fraction form
    5,515.39/8,272.88 = 1,355.41/x
  3. Step 3: Cross multiply
    5,515.39x = 8,272.88 × 1,355.41
  4. Step 4: Simplify right side
    5,515.39x = 11,213,096.14
  5. Step 5: Solve for x
    x = 11,213,096.14/5,515.39
  6. Step 6: Final answer
    x = 2,033.06

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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.