Home / 3,188.12-4,780.34-1,238.04

Finding the Fourth Proportional to 3,188.12, 4,780.34 and 1,238.04

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Solution

The fourth proportional to 3,188.12, 4,780.34 and 1,238.04 is: 1,856.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.12 : 4,780.34 = 1,238.04 : x
  2. Step 2: Convert to fraction form
    3,188.12/4,780.34 = 1,238.04/x
  3. Step 3: Cross multiply
    3,188.12x = 4,780.34 × 1,238.04
  4. Step 4: Simplify right side
    3,188.12x = 5,918,245.94
  5. Step 5: Solve for x
    x = 5,918,245.94/3,188.12
  6. Step 6: Final answer
    x = 1,856.35

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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.