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Finding the Fourth Proportional to 4,951.82, 7,428.84 and 1,664.73

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Solution

The fourth proportional to 4,951.82, 7,428.84 and 1,664.73 is: 2,497.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,951.82 : 7,428.84 = 1,664.73 : x
  2. Step 2: Convert to fraction form
    4,951.82/7,428.84 = 1,664.73/x
  3. Step 3: Cross multiply
    4,951.82x = 7,428.84 × 1,664.73
  4. Step 4: Simplify right side
    4,951.82x = 12,367,012.81
  5. Step 5: Solve for x
    x = 12,367,012.81/4,951.82
  6. Step 6: Final answer
    x = 2,497.47

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1.5x scale

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.