Home / 7,855.23-11,784.57-2,590.03

Finding the Fourth Proportional to 7,855.23, 11,784.57 and 2,590.03

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Solution

The fourth proportional to 7,855.23, 11,784.57 and 2,590.03 is: 3,885.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,855.23 : 11,784.57 = 2,590.03 : x
  2. Step 2: Convert to fraction form
    7,855.23/11,784.57 = 2,590.03/x
  3. Step 3: Cross multiply
    7,855.23x = 11,784.57 × 2,590.03
  4. Step 4: Simplify right side
    7,855.23x = 30,522,360.38
  5. Step 5: Solve for x
    x = 30,522,360.38/7,855.23
  6. Step 6: Final answer
    x = 3,885.61

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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.