Home / 7,939.04-11,905.78-3,257.72

Finding the Fourth Proportional to 7,939.04, 11,905.78 and 3,257.72

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Solution

The fourth proportional to 7,939.04, 11,905.78 and 3,257.72 is: 4,885.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,939.04 : 11,905.78 = 3,257.72 : x
  2. Step 2: Convert to fraction form
    7,939.04/11,905.78 = 3,257.72/x
  3. Step 3: Cross multiply
    7,939.04x = 11,905.78 × 3,257.72
  4. Step 4: Simplify right side
    7,939.04x = 38,785,697.62
  5. Step 5: Solve for x
    x = 38,785,697.62/7,939.04
  6. Step 6: Final answer
    x = 4,885.44

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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.