Home / 3,928.60-5,419.65-2,353.96

Finding the Fourth Proportional to 3,928.60, 5,419.65 and 2,353.96

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Solution

The fourth proportional to 3,928.60, 5,419.65 and 2,353.96 is: 3,247.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928.60 : 5,419.65 = 2,353.96 : x
  2. Step 2: Convert to fraction form
    3,928.60/5,419.65 = 2,353.96/x
  3. Step 3: Cross multiply
    3,928.60x = 5,419.65 × 2,353.96
  4. Step 4: Simplify right side
    3,928.60x = 12,757,639.31
  5. Step 5: Solve for x
    x = 12,757,639.31/3,928.60
  6. Step 6: Final answer
    x = 3,247.38

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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.