Home / 5,378.43-8,068.14-2,091.77

Finding the Fourth Proportional to 5,378.43, 8,068.14 and 2,091.77

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Solution

The fourth proportional to 5,378.43, 8,068.14 and 2,091.77 is: 3,137.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,378.43 : 8,068.14 = 2,091.77 : x
  2. Step 2: Convert to fraction form
    5,378.43/8,068.14 = 2,091.77/x
  3. Step 3: Cross multiply
    5,378.43x = 8,068.14 × 2,091.77
  4. Step 4: Simplify right side
    5,378.43x = 16,876,713.38
  5. Step 5: Solve for x
    x = 16,876,713.38/5,378.43
  6. Step 6: Final answer
    x = 3,137.85

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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.