Home / 4,189.91-5,784.39-2,865.56

Finding the Fourth Proportional to 4,189.91, 5,784.39 and 2,865.56

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Solution

The fourth proportional to 4,189.91, 5,784.39 and 2,865.56 is: 3,956.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,189.91 : 5,784.39 = 2,865.56 : x
  2. Step 2: Convert to fraction form
    4,189.91/5,784.39 = 2,865.56/x
  3. Step 3: Cross multiply
    4,189.91x = 5,784.39 × 2,865.56
  4. Step 4: Simplify right side
    4,189.91x = 16,575,502.28
  5. Step 5: Solve for x
    x = 16,575,502.28/4,189.91
  6. Step 6: Final answer
    x = 3,956.05

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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.