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Finding the Fourth Proportional to 3,951.52, 5,927.88 and 1,486.51

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Solution

The fourth proportional to 3,951.52, 5,927.88 and 1,486.51 is: 2,229.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,951.52 : 5,927.88 = 1,486.51 : x
  2. Step 2: Convert to fraction form
    3,951.52/5,927.88 = 1,486.51/x
  3. Step 3: Cross multiply
    3,951.52x = 5,927.88 × 1,486.51
  4. Step 4: Simplify right side
    3,951.52x = 8,811,852.90
  5. Step 5: Solve for x
    x = 8,811,852.90/3,951.52
  6. Step 6: Final answer
    x = 2,229.99

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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.