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Finding the Fourth Proportional to 2,951.68, 4,427.41 and 760.43

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Solution

The fourth proportional to 2,951.68, 4,427.41 and 760.43 is: 1,140.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,951.68 : 4,427.41 = 760.43 : x
  2. Step 2: Convert to fraction form
    2,951.68/4,427.41 = 760.43/x
  3. Step 3: Cross multiply
    2,951.68x = 4,427.41 × 760.43
  4. Step 4: Simplify right side
    2,951.68x = 3,366,735.39
  5. Step 5: Solve for x
    x = 3,366,735.39/2,951.68
  6. Step 6: Final answer
    x = 1,140.62

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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.