Home / 5,135.81-7,704.62-2,795.72

Finding the Fourth Proportional to 5,135.81, 7,704.62 and 2,795.72

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Solution

The fourth proportional to 5,135.81, 7,704.62 and 2,795.72 is: 4,194.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,135.81 : 7,704.62 = 2,795.72 : x
  2. Step 2: Convert to fraction form
    5,135.81/7,704.62 = 2,795.72/x
  3. Step 3: Cross multiply
    5,135.81x = 7,704.62 × 2,795.72
  4. Step 4: Simplify right side
    5,135.81x = 21,539,918.21
  5. Step 5: Solve for x
    x = 21,539,918.21/5,135.81
  6. Step 6: Final answer
    x = 4,194.07

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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.