Home / 3,801.32-5,245.23-2,122.64

Finding the Fourth Proportional to 3,801.32, 5,245.23 and 2,122.64

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Solution

The fourth proportional to 3,801.32, 5,245.23 and 2,122.64 is: 2,928.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,801.32 : 5,245.23 = 2,122.64 : x
  2. Step 2: Convert to fraction form
    3,801.32/5,245.23 = 2,122.64/x
  3. Step 3: Cross multiply
    3,801.32x = 5,245.23 × 2,122.64
  4. Step 4: Simplify right side
    3,801.32x = 11,133,735.01
  5. Step 5: Solve for x
    x = 11,133,735.01/3,801.32
  6. Step 6: Final answer
    x = 2,928.91

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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.