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Finding the Fourth Proportional to 1,414, 1,951.50 and 824.50

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Solution

The fourth proportional to 1,414, 1,951.50 and 824.50 is: 1,137.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,414 : 1,951.50 = 824.50 : x
  2. Step 2: Convert to fraction form
    1,414/1,951.50 = 824.50/x
  3. Step 3: Cross multiply
    1,414x = 1,951.50 × 824.50
  4. Step 4: Simplify right side
    1,414x = 1,609,011.75
  5. Step 5: Solve for x
    x = 1,609,011.75/1,414
  6. Step 6: Final answer
    x = 1,137.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.