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Finding the Fourth Proportional to 5,334.50, 8,001.75 and 1,686.50

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Solution

The fourth proportional to 5,334.50, 8,001.75 and 1,686.50 is: 2,529.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,334.50 : 8,001.75 = 1,686.50 : x
  2. Step 2: Convert to fraction form
    5,334.50/8,001.75 = 1,686.50/x
  3. Step 3: Cross multiply
    5,334.50x = 8,001.75 × 1,686.50
  4. Step 4: Simplify right side
    5,334.50x = 13,494,951.38
  5. Step 5: Solve for x
    x = 13,494,951.38/5,334.50
  6. Step 6: Final answer
    x = 2,529.75

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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.