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Finding the Fourth Proportional to 4,879.82, 7,321.39 and 1,548.63

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Solution

The fourth proportional to 4,879.82, 7,321.39 and 1,548.63 is: 2,323.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,879.82 : 7,321.39 = 1,548.63 : x
  2. Step 2: Convert to fraction form
    4,879.82/7,321.39 = 1,548.63/x
  3. Step 3: Cross multiply
    4,879.82x = 7,321.39 × 1,548.63
  4. Step 4: Simplify right side
    4,879.82x = 11,338,120.32
  5. Step 5: Solve for x
    x = 11,338,120.32/4,879.82
  6. Step 6: Final answer
    x = 2,323.47

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1.5x scale

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.