Home / 3,515.76-5,270.31-1,324.02

Finding the Fourth Proportional to 3,515.76, 5,270.31 and 1,324.02

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Solution

The fourth proportional to 3,515.76, 5,270.31 and 1,324.02 is: 1,984.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,515.76 : 5,270.31 = 1,324.02 : x
  2. Step 2: Convert to fraction form
    3,515.76/5,270.31 = 1,324.02/x
  3. Step 3: Cross multiply
    3,515.76x = 5,270.31 × 1,324.02
  4. Step 4: Simplify right side
    3,515.76x = 6,977,995.85
  5. Step 5: Solve for x
    x = 6,977,995.85/3,515.76
  6. Step 6: Final answer
    x = 1,984.78

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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.