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Finding the Fourth Proportional to 3,952.16, 5,928.06 and 1,486.79

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Solution

The fourth proportional to 3,952.16, 5,928.06 and 1,486.79 is: 2,230.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,952.16 : 5,928.06 = 1,486.79 : x
  2. Step 2: Convert to fraction form
    3,952.16/5,928.06 = 1,486.79/x
  3. Step 3: Cross multiply
    3,952.16x = 5,928.06 × 1,486.79
  4. Step 4: Simplify right side
    3,952.16x = 8,813,780.33
  5. Step 5: Solve for x
    x = 8,813,780.33/3,952.16
  6. Step 6: Final answer
    x = 2,230.12

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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.