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Finding the Fourth Proportional to 1,933.27, 2,900.45 and 635.65

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Solution

The fourth proportional to 1,933.27, 2,900.45 and 635.65 is: 953.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,933.27 : 2,900.45 = 635.65 : x
  2. Step 2: Convert to fraction form
    1,933.27/2,900.45 = 635.65/x
  3. Step 3: Cross multiply
    1,933.27x = 2,900.45 × 635.65
  4. Step 4: Simplify right side
    1,933.27x = 1,843,671.04
  5. Step 5: Solve for x
    x = 1,843,671.04/1,933.27
  6. Step 6: Final answer
    x = 953.65

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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.