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Finding the Fourth Proportional to 4,889.50, 6,747.50 and 2,651.37

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Solution

The fourth proportional to 4,889.50, 6,747.50 and 2,651.37 is: 3,658.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,889.50 : 6,747.50 = 2,651.37 : x
  2. Step 2: Convert to fraction form
    4,889.50/6,747.50 = 2,651.37/x
  3. Step 3: Cross multiply
    4,889.50x = 6,747.50 × 2,651.37
  4. Step 4: Simplify right side
    4,889.50x = 17,890,128.87
  5. Step 5: Solve for x
    x = 17,890,128.87/4,889.50
  6. Step 6: Final answer
    x = 3,658.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.