Home / 4,078.72-6,122.13-1,887.94

Finding the Fourth Proportional to 4,078.72, 6,122.13 and 1,887.94

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Solution

The fourth proportional to 4,078.72, 6,122.13 and 1,887.94 is: 2,833.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.72 : 6,122.13 = 1,887.94 : x
  2. Step 2: Convert to fraction form
    4,078.72/6,122.13 = 1,887.94/x
  3. Step 3: Cross multiply
    4,078.72x = 6,122.13 × 1,887.94
  4. Step 4: Simplify right side
    4,078.72x = 11,558,214.11
  5. Step 5: Solve for x
    x = 11,558,214.11/4,078.72
  6. Step 6: Final answer
    x = 2,833.78

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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.