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Finding the Fourth Proportional to 3,271, 4,906.98 and 1,953.96

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Solution

The fourth proportional to 3,271, 4,906.98 and 1,953.96 is: 2,931.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,271 : 4,906.98 = 1,953.96 : x
  2. Step 2: Convert to fraction form
    3,271/4,906.98 = 1,953.96/x
  3. Step 3: Cross multiply
    3,271x = 4,906.98 × 1,953.96
  4. Step 4: Simplify right side
    3,271x = 9,588,042.64
  5. Step 5: Solve for x
    x = 9,588,042.64/3,271
  6. Step 6: Final answer
    x = 2,931.23

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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.