Home / 3,546.88-5,320.35-949.78

Finding the Fourth Proportional to 3,546.88, 5,320.35 and 949.78

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Solution

The fourth proportional to 3,546.88, 5,320.35 and 949.78 is: 1,424.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,546.88 : 5,320.35 = 949.78 : x
  2. Step 2: Convert to fraction form
    3,546.88/5,320.35 = 949.78/x
  3. Step 3: Cross multiply
    3,546.88x = 5,320.35 × 949.78
  4. Step 4: Simplify right side
    3,546.88x = 5,053,162.02
  5. Step 5: Solve for x
    x = 5,053,162.02/3,546.88
  6. Step 6: Final answer
    x = 1,424.68

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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.