Home / 5,921.91-8,175.20-3,684.51

Finding the Fourth Proportional to 5,921.91, 8,175.20 and 3,684.51

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Solution

The fourth proportional to 5,921.91, 8,175.20 and 3,684.51 is: 5,086.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,921.91 : 8,175.20 = 3,684.51 : x
  2. Step 2: Convert to fraction form
    5,921.91/8,175.20 = 3,684.51/x
  3. Step 3: Cross multiply
    5,921.91x = 8,175.20 × 3,684.51
  4. Step 4: Simplify right side
    5,921.91x = 30,121,587.73
  5. Step 5: Solve for x
    x = 30,121,587.73/5,921.91
  6. Step 6: Final answer
    x = 5,086.46

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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.