Home / 3,778.35-5,212.64-2,184.71

Finding the Fourth Proportional to 3,778.35, 5,212.64 and 2,184.71

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Solution

The fourth proportional to 3,778.35, 5,212.64 and 2,184.71 is: 3,014.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,778.35 : 5,212.64 = 2,184.71 : x
  2. Step 2: Convert to fraction form
    3,778.35/5,212.64 = 2,184.71/x
  3. Step 3: Cross multiply
    3,778.35x = 5,212.64 × 2,184.71
  4. Step 4: Simplify right side
    3,778.35x = 11,388,089.30
  5. Step 5: Solve for x
    x = 11,388,089.30/3,778.35
  6. Step 6: Final answer
    x = 3,014.03

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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.