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Finding the Fourth Proportional to 6,245.88, 8,619.21 and 3,451.38

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Solution

The fourth proportional to 6,245.88, 8,619.21 and 3,451.38 is: 4,762.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,245.88 : 8,619.21 = 3,451.38 : x
  2. Step 2: Convert to fraction form
    6,245.88/8,619.21 = 3,451.38/x
  3. Step 3: Cross multiply
    6,245.88x = 8,619.21 × 3,451.38
  4. Step 4: Simplify right side
    6,245.88x = 29,748,169.01
  5. Step 5: Solve for x
    x = 29,748,169.01/6,245.88
  6. Step 6: Final answer
    x = 4,762.85

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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.