Home / 3,956.28-5,459.57-2,163.69

Finding the Fourth Proportional to 3,956.28, 5,459.57 and 2,163.69

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Solution

The fourth proportional to 3,956.28, 5,459.57 and 2,163.69 is: 2,985.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,956.28 : 5,459.57 = 2,163.69 : x
  2. Step 2: Convert to fraction form
    3,956.28/5,459.57 = 2,163.69/x
  3. Step 3: Cross multiply
    3,956.28x = 5,459.57 × 2,163.69
  4. Step 4: Simplify right side
    3,956.28x = 11,812,817.01
  5. Step 5: Solve for x
    x = 11,812,817.01/3,956.28
  6. Step 6: Final answer
    x = 2,985.84

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Double scale
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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.