Home / 3,819.24-5,708.64-3,321.72

Finding the Fourth Proportional to 3,819.24, 5,708.64 and 3,321.72

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Solution

The fourth proportional to 3,819.24, 5,708.64 and 3,321.72 is: 4,964.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,819.24 : 5,708.64 = 3,321.72 : x
  2. Step 2: Convert to fraction form
    3,819.24/5,708.64 = 3,321.72/x
  3. Step 3: Cross multiply
    3,819.24x = 5,708.64 × 3,321.72
  4. Step 4: Simplify right side
    3,819.24x = 18,962,503.66
  5. Step 5: Solve for x
    x = 18,962,503.66/3,819.24
  6. Step 6: Final answer
    x = 4,964.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.