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Finding the Fourth Proportional to 1,260.58, 1,889.47 and 951.43

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Solution

The fourth proportional to 1,260.58, 1,889.47 and 951.43 is: 1,426.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260.58 : 1,889.47 = 951.43 : x
  2. Step 2: Convert to fraction form
    1,260.58/1,889.47 = 951.43/x
  3. Step 3: Cross multiply
    1,260.58x = 1,889.47 × 951.43
  4. Step 4: Simplify right side
    1,260.58x = 1,797,705.54
  5. Step 5: Solve for x
    x = 1,797,705.54/1,260.58
  6. Step 6: Final answer
    x = 1,426.09

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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.