Home / 3,169.14-4,753.20-947.94

Finding the Fourth Proportional to 3,169.14, 4,753.20 and 947.94

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Solution

The fourth proportional to 3,169.14, 4,753.20 and 947.94 is: 1,421.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,169.14 : 4,753.20 = 947.94 : x
  2. Step 2: Convert to fraction form
    3,169.14/4,753.20 = 947.94/x
  3. Step 3: Cross multiply
    3,169.14x = 4,753.20 × 947.94
  4. Step 4: Simplify right side
    3,169.14x = 4,505,748.41
  5. Step 5: Solve for x
    x = 4,505,748.41/3,169.14
  6. Step 6: Final answer
    x = 1,421.76

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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.