Home / 3,931.28-5,425.24-2,438.44

Finding the Fourth Proportional to 3,931.28, 5,425.24 and 2,438.44

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Solution

The fourth proportional to 3,931.28, 5,425.24 and 2,438.44 is: 3,365.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,931.28 : 5,425.24 = 2,438.44 : x
  2. Step 2: Convert to fraction form
    3,931.28/5,425.24 = 2,438.44/x
  3. Step 3: Cross multiply
    3,931.28x = 5,425.24 × 2,438.44
  4. Step 4: Simplify right side
    3,931.28x = 13,229,122.23
  5. Step 5: Solve for x
    x = 13,229,122.23/3,931.28
  6. Step 6: Final answer
    x = 3,365.09

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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.