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Finding the Fourth Proportional to 4,971.39, 7,440.86 and 3,654.80

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Solution

The fourth proportional to 4,971.39, 7,440.86 and 3,654.80 is: 5,470.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,971.39 : 7,440.86 = 3,654.80 : x
  2. Step 2: Convert to fraction form
    4,971.39/7,440.86 = 3,654.80/x
  3. Step 3: Cross multiply
    4,971.39x = 7,440.86 × 3,654.80
  4. Step 4: Simplify right side
    4,971.39x = 27,194,854.96
  5. Step 5: Solve for x
    x = 27,194,854.96/4,971.39
  6. Step 6: Final answer
    x = 5,470.27

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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.