Home / 3,591.28-5,385.24-2,130.64

Finding the Fourth Proportional to 3,591.28, 5,385.24 and 2,130.64

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Solution

The fourth proportional to 3,591.28, 5,385.24 and 2,130.64 is: 3,194.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,591.28 : 5,385.24 = 2,130.64 : x
  2. Step 2: Convert to fraction form
    3,591.28/5,385.24 = 2,130.64/x
  3. Step 3: Cross multiply
    3,591.28x = 5,385.24 × 2,130.64
  4. Step 4: Simplify right side
    3,591.28x = 11,474,007.75
  5. Step 5: Solve for x
    x = 11,474,007.75/3,591.28
  6. Step 6: Final answer
    x = 3,194.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.