Home / 3,949.92-5,926.61-1,871.42

Finding the Fourth Proportional to 3,949.92, 5,926.61 and 1,871.42

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Solution

The fourth proportional to 3,949.92, 5,926.61 and 1,871.42 is: 2,807.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,949.92 : 5,926.61 = 1,871.42 : x
  2. Step 2: Convert to fraction form
    3,949.92/5,926.61 = 1,871.42/x
  3. Step 3: Cross multiply
    3,949.92x = 5,926.61 × 1,871.42
  4. Step 4: Simplify right side
    3,949.92x = 11,091,151.53
  5. Step 5: Solve for x
    x = 11,091,151.53/3,949.92
  6. Step 6: Final answer
    x = 2,807.94

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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.