Home / 5,115.65-7,682.72-4,704.03

Finding the Fourth Proportional to 5,115.65, 7,682.72 and 4,704.03

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Solution

The fourth proportional to 5,115.65, 7,682.72 and 4,704.03 is: 7,064.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,115.65 : 7,682.72 = 4,704.03 : x
  2. Step 2: Convert to fraction form
    5,115.65/7,682.72 = 4,704.03/x
  3. Step 3: Cross multiply
    5,115.65x = 7,682.72 × 4,704.03
  4. Step 4: Simplify right side
    5,115.65x = 36,139,745.36
  5. Step 5: Solve for x
    x = 36,139,745.36/5,115.65
  6. Step 6: Final answer
    x = 7,064.55

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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.