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Finding the Fourth Proportional to 1,458.86, 2,188.52 and 484.73

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Solution

The fourth proportional to 1,458.86, 2,188.52 and 484.73 is: 727.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,458.86 : 2,188.52 = 484.73 : x
  2. Step 2: Convert to fraction form
    1,458.86/2,188.52 = 484.73/x
  3. Step 3: Cross multiply
    1,458.86x = 2,188.52 × 484.73
  4. Step 4: Simplify right side
    1,458.86x = 1,060,850.27
  5. Step 5: Solve for x
    x = 1,060,850.27/1,458.86
  6. Step 6: Final answer
    x = 727.18

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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.