Home / 3,999.15-5,989.14-3,174.71

Finding the Fourth Proportional to 3,999.15, 5,989.14 and 3,174.71

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Solution

The fourth proportional to 3,999.15, 5,989.14 and 3,174.71 is: 4,754.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,999.15 : 5,989.14 = 3,174.71 : x
  2. Step 2: Convert to fraction form
    3,999.15/5,989.14 = 3,174.71/x
  3. Step 3: Cross multiply
    3,999.15x = 5,989.14 × 3,174.71
  4. Step 4: Simplify right side
    3,999.15x = 19,013,752.70
  5. Step 5: Solve for x
    x = 19,013,752.70/3,999.15
  6. Step 6: Final answer
    x = 4,754.45

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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.