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Finding the Fourth Proportional to 4,878.73, 7,319.01 and 1,957.26

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Solution

The fourth proportional to 4,878.73, 7,319.01 and 1,957.26 is: 2,936.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878.73 : 7,319.01 = 1,957.26 : x
  2. Step 2: Convert to fraction form
    4,878.73/7,319.01 = 1,957.26/x
  3. Step 3: Cross multiply
    4,878.73x = 7,319.01 × 1,957.26
  4. Step 4: Simplify right side
    4,878.73x = 14,325,229.29
  5. Step 5: Solve for x
    x = 14,325,229.29/4,878.73
  6. Step 6: Final answer
    x = 2,936.26

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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.