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Finding the Fourth Proportional to 2,002.47, 3,003.90 and 541.65

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Solution

The fourth proportional to 2,002.47, 3,003.90 and 541.65 is: 812.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,002.47 : 3,003.90 = 541.65 : x
  2. Step 2: Convert to fraction form
    2,002.47/3,003.90 = 541.65/x
  3. Step 3: Cross multiply
    2,002.47x = 3,003.90 × 541.65
  4. Step 4: Simplify right side
    2,002.47x = 1,627,062.44
  5. Step 5: Solve for x
    x = 1,627,062.44/2,002.47
  6. Step 6: Final answer
    x = 812.53

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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.