Home / 7,860.30-11,792.98-2,930.64

Finding the Fourth Proportional to 7,860.30, 11,792.98 and 2,930.64

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Solution

The fourth proportional to 7,860.30, 11,792.98 and 2,930.64 is: 4,396.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,860.30 : 11,792.98 = 2,930.64 : x
  2. Step 2: Convert to fraction form
    7,860.30/11,792.98 = 2,930.64/x
  3. Step 3: Cross multiply
    7,860.30x = 11,792.98 × 2,930.64
  4. Step 4: Simplify right side
    7,860.30x = 34,560,978.91
  5. Step 5: Solve for x
    x = 34,560,978.91/7,860.30
  6. Step 6: Final answer
    x = 4,396.90

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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.