Home / 3,778.97-5,214.53-2,207.21

Finding the Fourth Proportional to 3,778.97, 5,214.53 and 2,207.21

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Solution

The fourth proportional to 3,778.97, 5,214.53 and 2,207.21 is: 3,045.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,778.97 : 5,214.53 = 2,207.21 : x
  2. Step 2: Convert to fraction form
    3,778.97/5,214.53 = 2,207.21/x
  3. Step 3: Cross multiply
    3,778.97x = 5,214.53 × 2,207.21
  4. Step 4: Simplify right side
    3,778.97x = 11,509,562.76
  5. Step 5: Solve for x
    x = 11,509,562.76/3,778.97
  6. Step 6: Final answer
    x = 3,045.69

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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.