Home / 7,913.94-11,871.18-2,982.42

Finding the Fourth Proportional to 7,913.94, 11,871.18 and 2,982.42

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Solution

The fourth proportional to 7,913.94, 11,871.18 and 2,982.42 is: 4,473.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,913.94 : 11,871.18 = 2,982.42 : x
  2. Step 2: Convert to fraction form
    7,913.94/11,871.18 = 2,982.42/x
  3. Step 3: Cross multiply
    7,913.94x = 11,871.18 × 2,982.42
  4. Step 4: Simplify right side
    7,913.94x = 35,404,844.66
  5. Step 5: Solve for x
    x = 35,404,844.66/7,913.94
  6. Step 6: Final answer
    x = 4,473.73

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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.