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Finding the Fourth Proportional to 4,489.70, 6,734.76 and 1,716.60

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Solution

The fourth proportional to 4,489.70, 6,734.76 and 1,716.60 is: 2,574.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,489.70 : 6,734.76 = 1,716.60 : x
  2. Step 2: Convert to fraction form
    4,489.70/6,734.76 = 1,716.60/x
  3. Step 3: Cross multiply
    4,489.70x = 6,734.76 × 1,716.60
  4. Step 4: Simplify right side
    4,489.70x = 11,560,889.02
  5. Step 5: Solve for x
    x = 11,560,889.02/4,489.70
  6. Step 6: Final answer
    x = 2,574.98

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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.