Home / 6,424.20-8,861.77-3,771.10

Finding the Fourth Proportional to 6,424.20, 8,861.77 and 3,771.10

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Solution

The fourth proportional to 6,424.20, 8,861.77 and 3,771.10 is: 5,201.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,424.20 : 8,861.77 = 3,771.10 : x
  2. Step 2: Convert to fraction form
    6,424.20/8,861.77 = 3,771.10/x
  3. Step 3: Cross multiply
    6,424.20x = 8,861.77 × 3,771.10
  4. Step 4: Simplify right side
    6,424.20x = 33,418,620.85
  5. Step 5: Solve for x
    x = 33,418,620.85/6,424.20
  6. Step 6: Final answer
    x = 5,201.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.