Home / 3,420.67-5,131.02-1,229.41

Finding the Fourth Proportional to 3,420.67, 5,131.02 and 1,229.41

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Solution

The fourth proportional to 3,420.67, 5,131.02 and 1,229.41 is: 1,844.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420.67 : 5,131.02 = 1,229.41 : x
  2. Step 2: Convert to fraction form
    3,420.67/5,131.02 = 1,229.41/x
  3. Step 3: Cross multiply
    3,420.67x = 5,131.02 × 1,229.41
  4. Step 4: Simplify right side
    3,420.67x = 6,308,127.30
  5. Step 5: Solve for x
    x = 6,308,127.30/3,420.67
  6. Step 6: Final answer
    x = 1,844.12

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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.