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Finding the Fourth Proportional to 4,541.80, 6,809.10 and 2,489.80

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Solution

The fourth proportional to 4,541.80, 6,809.10 and 2,489.80 is: 3,732.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,541.80 : 6,809.10 = 2,489.80 : x
  2. Step 2: Convert to fraction form
    4,541.80/6,809.10 = 2,489.80/x
  3. Step 3: Cross multiply
    4,541.80x = 6,809.10 × 2,489.80
  4. Step 4: Simplify right side
    4,541.80x = 16,953,297.18
  5. Step 5: Solve for x
    x = 16,953,297.18/4,541.80
  6. Step 6: Final answer
    x = 3,732.73

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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.