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Finding the Fourth Proportional to 3,897.92, 5,849.32 and 2,439.92

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Solution

The fourth proportional to 3,897.92, 5,849.32 and 2,439.92 is: 3,661.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,897.92 : 5,849.32 = 2,439.92 : x
  2. Step 2: Convert to fraction form
    3,897.92/5,849.32 = 2,439.92/x
  3. Step 3: Cross multiply
    3,897.92x = 5,849.32 × 2,439.92
  4. Step 4: Simplify right side
    3,897.92x = 14,271,872.85
  5. Step 5: Solve for x
    x = 14,271,872.85/3,897.92
  6. Step 6: Final answer
    x = 3,661.41

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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.