Home / 3,190.14-4,781.76-1,214.84

Finding the Fourth Proportional to 3,190.14, 4,781.76 and 1,214.84

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Solution

The fourth proportional to 3,190.14, 4,781.76 and 1,214.84 is: 1,820.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.14 : 4,781.76 = 1,214.84 : x
  2. Step 2: Convert to fraction form
    3,190.14/4,781.76 = 1,214.84/x
  3. Step 3: Cross multiply
    3,190.14x = 4,781.76 × 1,214.84
  4. Step 4: Simplify right side
    3,190.14x = 5,809,073.32
  5. Step 5: Solve for x
    x = 5,809,073.32/3,190.14
  6. Step 6: Final answer
    x = 1,820.95

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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.