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Finding the Fourth Proportional to 4,889.75, 6,750.18 and 3,098.12

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Solution

The fourth proportional to 4,889.75, 6,750.18 and 3,098.12 is: 4,276.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,889.75 : 6,750.18 = 3,098.12 : x
  2. Step 2: Convert to fraction form
    4,889.75/6,750.18 = 3,098.12/x
  3. Step 3: Cross multiply
    4,889.75x = 6,750.18 × 3,098.12
  4. Step 4: Simplify right side
    4,889.75x = 20,912,867.66
  5. Step 5: Solve for x
    x = 20,912,867.66/4,889.75
  6. Step 6: Final answer
    x = 4,276.88

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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.