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Finding the Fourth Proportional to 6,262.61, 8,640.31 and 3,609.97

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Solution

The fourth proportional to 6,262.61, 8,640.31 and 3,609.97 is: 4,980.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,262.61 : 8,640.31 = 3,609.97 : x
  2. Step 2: Convert to fraction form
    6,262.61/8,640.31 = 3,609.97/x
  3. Step 3: Cross multiply
    6,262.61x = 8,640.31 × 3,609.97
  4. Step 4: Simplify right side
    6,262.61x = 31,191,229.27
  5. Step 5: Solve for x
    x = 31,191,229.27/6,262.61
  6. Step 6: Final answer
    x = 4,980.55

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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.