Home / 3,949.89-5,924.93-1,318.49

Finding the Fourth Proportional to 3,949.89, 5,924.93 and 1,318.49

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Solution

The fourth proportional to 3,949.89, 5,924.93 and 1,318.49 is: 1,977.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,949.89 : 5,924.93 = 1,318.49 : x
  2. Step 2: Convert to fraction form
    3,949.89/5,924.93 = 1,318.49/x
  3. Step 3: Cross multiply
    3,949.89x = 5,924.93 × 1,318.49
  4. Step 4: Simplify right side
    3,949.89x = 7,811,924.74
  5. Step 5: Solve for x
    x = 7,811,924.74/3,949.89
  6. Step 6: Final answer
    x = 1,977.76

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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.