Home / 5,135.62-7,704.98-2,172.54

Finding the Fourth Proportional to 5,135.62, 7,704.98 and 2,172.54

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Solution

The fourth proportional to 5,135.62, 7,704.98 and 2,172.54 is: 3,259.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,135.62 : 7,704.98 = 2,172.54 : x
  2. Step 2: Convert to fraction form
    5,135.62/7,704.98 = 2,172.54/x
  3. Step 3: Cross multiply
    5,135.62x = 7,704.98 × 2,172.54
  4. Step 4: Simplify right side
    5,135.62x = 16,739,347.12
  5. Step 5: Solve for x
    x = 16,739,347.12/5,135.62
  6. Step 6: Final answer
    x = 3,259.46

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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.