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Finding the Fourth Proportional to 3,983.80, 5,950.21 and 3,607.99

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Solution

The fourth proportional to 3,983.80, 5,950.21 and 3,607.99 is: 5,388.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,983.80 : 5,950.21 = 3,607.99 : x
  2. Step 2: Convert to fraction form
    3,983.80/5,950.21 = 3,607.99/x
  3. Step 3: Cross multiply
    3,983.80x = 5,950.21 × 3,607.99
  4. Step 4: Simplify right side
    3,983.80x = 21,468,310.13
  5. Step 5: Solve for x
    x = 21,468,310.13/3,983.80
  6. Step 6: Final answer
    x = 5,388.91

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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.