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Finding the Fourth Proportional to 1,957.33, 2,935.99 and 659.71

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Solution

The fourth proportional to 1,957.33, 2,935.99 and 659.71 is: 989.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,957.33 : 2,935.99 = 659.71 : x
  2. Step 2: Convert to fraction form
    1,957.33/2,935.99 = 659.71/x
  3. Step 3: Cross multiply
    1,957.33x = 2,935.99 × 659.71
  4. Step 4: Simplify right side
    1,957.33x = 1,936,887.28
  5. Step 5: Solve for x
    x = 1,936,887.28/1,957.33
  6. Step 6: Final answer
    x = 989.56

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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.