Home / 7,861.86-11,792.30-2,315.54

Finding the Fourth Proportional to 7,861.86, 11,792.30 and 2,315.54

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Solution

The fourth proportional to 7,861.86, 11,792.30 and 2,315.54 is: 3,473.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,861.86 : 11,792.30 = 2,315.54 : x
  2. Step 2: Convert to fraction form
    7,861.86/11,792.30 = 2,315.54/x
  3. Step 3: Cross multiply
    7,861.86x = 11,792.30 × 2,315.54
  4. Step 4: Simplify right side
    7,861.86x = 27,305,542.34
  5. Step 5: Solve for x
    x = 27,305,542.34/7,861.86
  6. Step 6: Final answer
    x = 3,473.17

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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.