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Finding the Fourth Proportional to 1,963.98, 2,945.98 and 503.14

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Solution

The fourth proportional to 1,963.98, 2,945.98 and 503.14 is: 754.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,963.98 : 2,945.98 = 503.14 : x
  2. Step 2: Convert to fraction form
    1,963.98/2,945.98 = 503.14/x
  3. Step 3: Cross multiply
    1,963.98x = 2,945.98 × 503.14
  4. Step 4: Simplify right side
    1,963.98x = 1,482,240.38
  5. Step 5: Solve for x
    x = 1,482,240.38/1,963.98
  6. Step 6: Final answer
    x = 754.71

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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.