Home / 3,928.58-5,423.83-2,733.12

Finding the Fourth Proportional to 3,928.58, 5,423.83 and 2,733.12

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Solution

The fourth proportional to 3,928.58, 5,423.83 and 2,733.12 is: 3,773.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928.58 : 5,423.83 = 2,733.12 : x
  2. Step 2: Convert to fraction form
    3,928.58/5,423.83 = 2,733.12/x
  3. Step 3: Cross multiply
    3,928.58x = 5,423.83 × 2,733.12
  4. Step 4: Simplify right side
    3,928.58x = 14,823,971.42
  5. Step 5: Solve for x
    x = 14,823,971.42/3,928.58
  6. Step 6: Final answer
    x = 3,773.37

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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.