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Finding the Fourth Proportional to 2,004.45, 3,006.44 and 543.72

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Solution

The fourth proportional to 2,004.45, 3,006.44 and 543.72 is: 815.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,004.45 : 3,006.44 = 543.72 : x
  2. Step 2: Convert to fraction form
    2,004.45/3,006.44 = 543.72/x
  3. Step 3: Cross multiply
    2,004.45x = 3,006.44 × 543.72
  4. Step 4: Simplify right side
    2,004.45x = 1,634,646.52
  5. Step 5: Solve for x
    x = 1,634,646.52/2,004.45
  6. Step 6: Final answer
    x = 815.51

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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.