Home / 7,861.39-11,792.45-2,596.86

Finding the Fourth Proportional to 7,861.39, 11,792.45 and 2,596.86

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Solution

The fourth proportional to 7,861.39, 11,792.45 and 2,596.86 is: 3,895.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,861.39 : 11,792.45 = 2,596.86 : x
  2. Step 2: Convert to fraction form
    7,861.39/11,792.45 = 2,596.86/x
  3. Step 3: Cross multiply
    7,861.39x = 11,792.45 × 2,596.86
  4. Step 4: Simplify right side
    7,861.39x = 30,623,341.71
  5. Step 5: Solve for x
    x = 30,623,341.71/7,861.39
  6. Step 6: Final answer
    x = 3,895.41

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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.