Home / 6,540.92-9,810.77-1,861.35

Finding the Fourth Proportional to 6,540.92, 9,810.77 and 1,861.35

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Solution

The fourth proportional to 6,540.92, 9,810.77 and 1,861.35 is: 2,791.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,540.92 : 9,810.77 = 1,861.35 : x
  2. Step 2: Convert to fraction form
    6,540.92/9,810.77 = 1,861.35/x
  3. Step 3: Cross multiply
    6,540.92x = 9,810.77 × 1,861.35
  4. Step 4: Simplify right side
    6,540.92x = 18,261,267.43
  5. Step 5: Solve for x
    x = 18,261,267.43/6,540.92
  6. Step 6: Final answer
    x = 2,791.85

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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.