Home / 4,086.30-5,643.74-2,757.68

Finding the Fourth Proportional to 4,086.30, 5,643.74 and 2,757.68

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Solution

The fourth proportional to 4,086.30, 5,643.74 and 2,757.68 is: 3,808.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,086.30 : 5,643.74 = 2,757.68 : x
  2. Step 2: Convert to fraction form
    4,086.30/5,643.74 = 2,757.68/x
  3. Step 3: Cross multiply
    4,086.30x = 5,643.74 × 2,757.68
  4. Step 4: Simplify right side
    4,086.30x = 15,563,628.92
  5. Step 5: Solve for x
    x = 15,563,628.92/4,086.30
  6. Step 6: Final answer
    x = 3,808.73

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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.