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Finding the Fourth Proportional to 3,608.07, 5,410.08 and 1,142.43

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Solution

The fourth proportional to 3,608.07, 5,410.08 and 1,142.43 is: 1,713.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,608.07 : 5,410.08 = 1,142.43 : x
  2. Step 2: Convert to fraction form
    3,608.07/5,410.08 = 1,142.43/x
  3. Step 3: Cross multiply
    3,608.07x = 5,410.08 × 1,142.43
  4. Step 4: Simplify right side
    3,608.07x = 6,180,637.69
  5. Step 5: Solve for x
    x = 6,180,637.69/3,608.07
  6. Step 6: Final answer
    x = 1,713.00

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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.