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Finding the Fourth Proportional to 7,790.41, 11,675.89 and 3,895.93

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Solution

The fourth proportional to 7,790.41, 11,675.89 and 3,895.93 is: 5,839.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,790.41 : 11,675.89 = 3,895.93 : x
  2. Step 2: Convert to fraction form
    7,790.41/11,675.89 = 3,895.93/x
  3. Step 3: Cross multiply
    7,790.41x = 11,675.89 × 3,895.93
  4. Step 4: Simplify right side
    7,790.41x = 45,488,450.13
  5. Step 5: Solve for x
    x = 45,488,450.13/7,790.41
  6. Step 6: Final answer
    x = 5,839.03

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1.5x scale

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.