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Finding the Fourth Proportional to 3,123.44, 4,679.18 and 2,339.44

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Solution

The fourth proportional to 3,123.44, 4,679.18 and 2,339.44 is: 3,504.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,123.44 : 4,679.18 = 2,339.44 : x
  2. Step 2: Convert to fraction form
    3,123.44/4,679.18 = 2,339.44/x
  3. Step 3: Cross multiply
    3,123.44x = 4,679.18 × 2,339.44
  4. Step 4: Simplify right side
    3,123.44x = 10,946,660.86
  5. Step 5: Solve for x
    x = 10,946,660.86/3,123.44
  6. Step 6: Final answer
    x = 3,504.68

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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.