Home / 4,086.99-5,638.41-2,405.73

Finding the Fourth Proportional to 4,086.99, 5,638.41 and 2,405.73

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Solution

The fourth proportional to 4,086.99, 5,638.41 and 2,405.73 is: 3,318.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,086.99 : 5,638.41 = 2,405.73 : x
  2. Step 2: Convert to fraction form
    4,086.99/5,638.41 = 2,405.73/x
  3. Step 3: Cross multiply
    4,086.99x = 5,638.41 × 2,405.73
  4. Step 4: Simplify right side
    4,086.99x = 13,564,492.09
  5. Step 5: Solve for x
    x = 13,564,492.09/4,086.99
  6. Step 6: Final answer
    x = 3,318.94

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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.