Home / 3,540.56-4,885.08-2,143.04

Finding the Fourth Proportional to 3,540.56, 4,885.08 and 2,143.04

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Solution

The fourth proportional to 3,540.56, 4,885.08 and 2,143.04 is: 2,956.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,540.56 : 4,885.08 = 2,143.04 : x
  2. Step 2: Convert to fraction form
    3,540.56/4,885.08 = 2,143.04/x
  3. Step 3: Cross multiply
    3,540.56x = 4,885.08 × 2,143.04
  4. Step 4: Simplify right side
    3,540.56x = 10,468,921.84
  5. Step 5: Solve for x
    x = 10,468,921.84/3,540.56
  6. Step 6: Final answer
    x = 2,956.85

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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.