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Finding the Fourth Proportional to 5,839.40, 8,751.78 and 2,918.54

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Solution

The fourth proportional to 5,839.40, 8,751.78 and 2,918.54 is: 4,374.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,839.40 : 8,751.78 = 2,918.54 : x
  2. Step 2: Convert to fraction form
    5,839.40/8,751.78 = 2,918.54/x
  3. Step 3: Cross multiply
    5,839.40x = 8,751.78 × 2,918.54
  4. Step 4: Simplify right side
    5,839.40x = 25,542,420.00
  5. Step 5: Solve for x
    x = 25,542,420.00/5,839.40
  6. Step 6: Final answer
    x = 4,374.15

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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.