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Finding the Fourth Proportional to 6,484.24, 8,949.32 and 3,689.68

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Solution

The fourth proportional to 6,484.24, 8,949.32 and 3,689.68 is: 5,092.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,484.24 : 8,949.32 = 3,689.68 : x
  2. Step 2: Convert to fraction form
    6,484.24/8,949.32 = 3,689.68/x
  3. Step 3: Cross multiply
    6,484.24x = 8,949.32 × 3,689.68
  4. Step 4: Simplify right side
    6,484.24x = 33,020,127.02
  5. Step 5: Solve for x
    x = 33,020,127.02/6,484.24
  6. Step 6: Final answer
    x = 5,092.37

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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.