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Finding the Fourth Proportional to 1,957.26, 2,935.83 and 658.72

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Solution

The fourth proportional to 1,957.26, 2,935.83 and 658.72 is: 988.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,957.26 : 2,935.83 = 658.72 : x
  2. Step 2: Convert to fraction form
    1,957.26/2,935.83 = 658.72/x
  3. Step 3: Cross multiply
    1,957.26x = 2,935.83 × 658.72
  4. Step 4: Simplify right side
    1,957.26x = 1,933,889.94
  5. Step 5: Solve for x
    x = 1,933,889.94/1,957.26
  6. Step 6: Final answer
    x = 988.06

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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.