Home / 5,148.89-7,723.32-1,861.97

Finding the Fourth Proportional to 5,148.89, 7,723.32 and 1,861.97

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Solution

The fourth proportional to 5,148.89, 7,723.32 and 1,861.97 is: 2,792.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,148.89 : 7,723.32 = 1,861.97 : x
  2. Step 2: Convert to fraction form
    5,148.89/7,723.32 = 1,861.97/x
  3. Step 3: Cross multiply
    5,148.89x = 7,723.32 × 1,861.97
  4. Step 4: Simplify right side
    5,148.89x = 14,380,590.14
  5. Step 5: Solve for x
    x = 14,380,590.14/5,148.89
  6. Step 6: Final answer
    x = 2,792.95

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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.