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Finding the Fourth Proportional to 1,149.86, 1,723.48 and 656.54

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Solution

The fourth proportional to 1,149.86, 1,723.48 and 656.54 is: 984.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149.86 : 1,723.48 = 656.54 : x
  2. Step 2: Convert to fraction form
    1,149.86/1,723.48 = 656.54/x
  3. Step 3: Cross multiply
    1,149.86x = 1,723.48 × 656.54
  4. Step 4: Simplify right side
    1,149.86x = 1,131,529.76
  5. Step 5: Solve for x
    x = 1,131,529.76/1,149.86
  6. Step 6: Final answer
    x = 984.06

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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.