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Finding the Fourth Proportional to 3,325.76, 4,988.64 and 2,747.42

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Solution

The fourth proportional to 3,325.76, 4,988.64 and 2,747.42 is: 4,121.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,325.76 : 4,988.64 = 2,747.42 : x
  2. Step 2: Convert to fraction form
    3,325.76/4,988.64 = 2,747.42/x
  3. Step 3: Cross multiply
    3,325.76x = 4,988.64 × 2,747.42
  4. Step 4: Simplify right side
    3,325.76x = 13,705,889.31
  5. Step 5: Solve for x
    x = 13,705,889.31/3,325.76
  6. Step 6: Final answer
    x = 4,121.13

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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.