Home / 7,690.62-11,537.69-2,425.61

Finding the Fourth Proportional to 7,690.62, 11,537.69 and 2,425.61

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Solution

The fourth proportional to 7,690.62, 11,537.69 and 2,425.61 is: 3,638.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,690.62 : 11,537.69 = 2,425.61 : x
  2. Step 2: Convert to fraction form
    7,690.62/11,537.69 = 2,425.61/x
  3. Step 3: Cross multiply
    7,690.62x = 11,537.69 × 2,425.61
  4. Step 4: Simplify right side
    7,690.62x = 27,985,866.42
  5. Step 5: Solve for x
    x = 27,985,866.42/7,690.62
  6. Step 6: Final answer
    x = 3,638.96

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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.