Home / 3,784.82-5,223.01-2,106.19

Finding the Fourth Proportional to 3,784.82, 5,223.01 and 2,106.19

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Solution

The fourth proportional to 3,784.82, 5,223.01 and 2,106.19 is: 2,906.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,784.82 : 5,223.01 = 2,106.19 : x
  2. Step 2: Convert to fraction form
    3,784.82/5,223.01 = 2,106.19/x
  3. Step 3: Cross multiply
    3,784.82x = 5,223.01 × 2,106.19
  4. Step 4: Simplify right side
    3,784.82x = 11,000,633.11
  5. Step 5: Solve for x
    x = 11,000,633.11/3,784.82
  6. Step 6: Final answer
    x = 2,906.51

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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.