Home / 3,207.28-4,807.26-1,257.88

Finding the Fourth Proportional to 3,207.28, 4,807.26 and 1,257.88

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Solution

The fourth proportional to 3,207.28, 4,807.26 and 1,257.88 is: 1,885.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,207.28 : 4,807.26 = 1,257.88 : x
  2. Step 2: Convert to fraction form
    3,207.28/4,807.26 = 1,257.88/x
  3. Step 3: Cross multiply
    3,207.28x = 4,807.26 × 1,257.88
  4. Step 4: Simplify right side
    3,207.28x = 6,046,956.21
  5. Step 5: Solve for x
    x = 6,046,956.21/3,207.28
  6. Step 6: Final answer
    x = 1,885.38

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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.