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Finding the Fourth Proportional to 2,003.36, 3,004.64 and 542.12

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Solution

The fourth proportional to 2,003.36, 3,004.64 and 542.12 is: 813.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,003.36 : 3,004.64 = 542.12 : x
  2. Step 2: Convert to fraction form
    2,003.36/3,004.64 = 542.12/x
  3. Step 3: Cross multiply
    2,003.36x = 3,004.64 × 542.12
  4. Step 4: Simplify right side
    2,003.36x = 1,628,875.44
  5. Step 5: Solve for x
    x = 1,628,875.44/2,003.36
  6. Step 6: Final answer
    x = 813.07

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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.