Home / 3,420.56-5,131.66-1,229.52

Finding the Fourth Proportional to 3,420.56, 5,131.66 and 1,229.52

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Solution

The fourth proportional to 3,420.56, 5,131.66 and 1,229.52 is: 1,844.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420.56 : 5,131.66 = 1,229.52 : x
  2. Step 2: Convert to fraction form
    3,420.56/5,131.66 = 1,229.52/x
  3. Step 3: Cross multiply
    3,420.56x = 5,131.66 × 1,229.52
  4. Step 4: Simplify right side
    3,420.56x = 6,309,478.60
  5. Step 5: Solve for x
    x = 6,309,478.60/3,420.56
  6. Step 6: Final answer
    x = 1,844.57

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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.