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Finding the Fourth Proportional to 1,956.44, 2,935.06 and 657.88

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Solution

The fourth proportional to 1,956.44, 2,935.06 and 657.88 is: 986.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,956.44 : 2,935.06 = 657.88 : x
  2. Step 2: Convert to fraction form
    1,956.44/2,935.06 = 657.88/x
  3. Step 3: Cross multiply
    1,956.44x = 2,935.06 × 657.88
  4. Step 4: Simplify right side
    1,956.44x = 1,930,917.27
  5. Step 5: Solve for x
    x = 1,930,917.27/1,956.44
  6. Step 6: Final answer
    x = 986.95

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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.