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Finding the Fourth Proportional to 4,889.52, 7,335 and 1,769.76

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Solution

The fourth proportional to 4,889.52, 7,335 and 1,769.76 is: 2,654.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,889.52 : 7,335 = 1,769.76 : x
  2. Step 2: Convert to fraction form
    4,889.52/7,335 = 1,769.76/x
  3. Step 3: Cross multiply
    4,889.52x = 7,335 × 1,769.76
  4. Step 4: Simplify right side
    4,889.52x = 12,981,189.60
  5. Step 5: Solve for x
    x = 12,981,189.60/4,889.52
  6. Step 6: Final answer
    x = 2,654.90

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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.