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Finding the Fourth Proportional to 6,188.70, 8,540.30 and 3,499.88

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Solution

The fourth proportional to 6,188.70, 8,540.30 and 3,499.88 is: 4,829.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,188.70 : 8,540.30 = 3,499.88 : x
  2. Step 2: Convert to fraction form
    6,188.70/8,540.30 = 3,499.88/x
  3. Step 3: Cross multiply
    6,188.70x = 8,540.30 × 3,499.88
  4. Step 4: Simplify right side
    6,188.70x = 29,889,982.46
  5. Step 5: Solve for x
    x = 29,889,982.46/6,188.70
  6. Step 6: Final answer
    x = 4,829.77

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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.