Home / 3,854.51-5,319.22-2,086.12

Finding the Fourth Proportional to 3,854.51, 5,319.22 and 2,086.12

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Solution

The fourth proportional to 3,854.51, 5,319.22 and 2,086.12 is: 2,878.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,854.51 : 5,319.22 = 2,086.12 : x
  2. Step 2: Convert to fraction form
    3,854.51/5,319.22 = 2,086.12/x
  3. Step 3: Cross multiply
    3,854.51x = 5,319.22 × 2,086.12
  4. Step 4: Simplify right side
    3,854.51x = 11,096,504.63
  5. Step 5: Solve for x
    x = 11,096,504.63/3,854.51
  6. Step 6: Final answer
    x = 2,878.84

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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.