Home / 3,778.39-5,214.18-2,206.18

Finding the Fourth Proportional to 3,778.39, 5,214.18 and 2,206.18

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Solution

The fourth proportional to 3,778.39, 5,214.18 and 2,206.18 is: 3,044.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,778.39 : 5,214.18 = 2,206.18 : x
  2. Step 2: Convert to fraction form
    3,778.39/5,214.18 = 2,206.18/x
  3. Step 3: Cross multiply
    3,778.39x = 5,214.18 × 2,206.18
  4. Step 4: Simplify right side
    3,778.39x = 11,503,419.63
  5. Step 5: Solve for x
    x = 11,503,419.63/3,778.39
  6. Step 6: Final answer
    x = 3,044.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.