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Finding the Fourth Proportional to 1,956.75, 2,935.57 and 658.19

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Solution

The fourth proportional to 1,956.75, 2,935.57 and 658.19 is: 987.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,956.75 : 2,935.57 = 658.19 : x
  2. Step 2: Convert to fraction form
    1,956.75/2,935.57 = 658.19/x
  3. Step 3: Cross multiply
    1,956.75x = 2,935.57 × 658.19
  4. Step 4: Simplify right side
    1,956.75x = 1,932,162.82
  5. Step 5: Solve for x
    x = 1,932,162.82/1,956.75
  6. Step 6: Final answer
    x = 987.43

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1.5x scale

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.