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Finding the Fourth Proportional to 3,994.99, 5,983.20 and 1,908.29

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Solution

The fourth proportional to 3,994.99, 5,983.20 and 1,908.29 is: 2,858.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,994.99 : 5,983.20 = 1,908.29 : x
  2. Step 2: Convert to fraction form
    3,994.99/5,983.20 = 1,908.29/x
  3. Step 3: Cross multiply
    3,994.99x = 5,983.20 × 1,908.29
  4. Step 4: Simplify right side
    3,994.99x = 11,417,695.69
  5. Step 5: Solve for x
    x = 11,417,695.69/3,994.99
  6. Step 6: Final answer
    x = 2,858.01

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1.5x scale

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.