Home / 3,645.30-5,469.30-1,180.20

Finding the Fourth Proportional to 3,645.30, 5,469.30 and 1,180.20

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Solution

The fourth proportional to 3,645.30, 5,469.30 and 1,180.20 is: 1,770.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,645.30 : 5,469.30 = 1,180.20 : x
  2. Step 2: Convert to fraction form
    3,645.30/5,469.30 = 1,180.20/x
  3. Step 3: Cross multiply
    3,645.30x = 5,469.30 × 1,180.20
  4. Step 4: Simplify right side
    3,645.30x = 6,454,867.86
  5. Step 5: Solve for x
    x = 6,454,867.86/3,645.30
  6. Step 6: Final answer
    x = 1,770.74

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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.