Home / 3,410.55-5,115.80-945.35

Finding the Fourth Proportional to 3,410.55, 5,115.80 and 945.35

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Solution

The fourth proportional to 3,410.55, 5,115.80 and 945.35 is: 1,418.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,410.55 : 5,115.80 = 945.35 : x
  2. Step 2: Convert to fraction form
    3,410.55/5,115.80 = 945.35/x
  3. Step 3: Cross multiply
    3,410.55x = 5,115.80 × 945.35
  4. Step 4: Simplify right side
    3,410.55x = 4,836,221.53
  5. Step 5: Solve for x
    x = 4,836,221.53/3,410.55
  6. Step 6: Final answer
    x = 1,418.02

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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.