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Finding the Fourth Proportional to 4,951.75, 7,427.64 and 1,489.81

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Solution

The fourth proportional to 4,951.75, 7,427.64 and 1,489.81 is: 2,234.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,951.75 : 7,427.64 = 1,489.81 : x
  2. Step 2: Convert to fraction form
    4,951.75/7,427.64 = 1,489.81/x
  3. Step 3: Cross multiply
    4,951.75x = 7,427.64 × 1,489.81
  4. Step 4: Simplify right side
    4,951.75x = 11,065,772.35
  5. Step 5: Solve for x
    x = 11,065,772.35/4,951.75
  6. Step 6: Final answer
    x = 2,234.72

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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.