Home / 3,778.11-5,213.64-2,184.51

Finding the Fourth Proportional to 3,778.11, 5,213.64 and 2,184.51

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Solution

The fourth proportional to 3,778.11, 5,213.64 and 2,184.51 is: 3,014.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,778.11 : 5,213.64 = 2,184.51 : x
  2. Step 2: Convert to fraction form
    3,778.11/5,213.64 = 2,184.51/x
  3. Step 3: Cross multiply
    3,778.11x = 5,213.64 × 2,184.51
  4. Step 4: Simplify right side
    3,778.11x = 11,389,248.72
  5. Step 5: Solve for x
    x = 11,389,248.72/3,778.11
  6. Step 6: Final answer
    x = 3,014.54

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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.