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Finding the Fourth Proportional to 3,951.57, 5,926.55 and 1,486.34

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Solution

The fourth proportional to 3,951.57, 5,926.55 and 1,486.34 is: 2,229.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,951.57 : 5,926.55 = 1,486.34 : x
  2. Step 2: Convert to fraction form
    3,951.57/5,926.55 = 1,486.34/x
  3. Step 3: Cross multiply
    3,951.57x = 5,926.55 × 1,486.34
  4. Step 4: Simplify right side
    3,951.57x = 8,808,868.33
  5. Step 5: Solve for x
    x = 8,808,868.33/3,951.57
  6. Step 6: Final answer
    x = 2,229.21

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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.