Home / 3,928.84-5,887.76-2,174.65

Finding the Fourth Proportional to 3,928.84, 5,887.76 and 2,174.65

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Solution

The fourth proportional to 3,928.84, 5,887.76 and 2,174.65 is: 3,258.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928.84 : 5,887.76 = 2,174.65 : x
  2. Step 2: Convert to fraction form
    3,928.84/5,887.76 = 2,174.65/x
  3. Step 3: Cross multiply
    3,928.84x = 5,887.76 × 2,174.65
  4. Step 4: Simplify right side
    3,928.84x = 12,803,791.69
  5. Step 5: Solve for x
    x = 12,803,791.69/3,928.84
  6. Step 6: Final answer
    x = 3,258.93

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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.