Home / 7,859.46-11,789.19-2,663.94

Finding the Fourth Proportional to 7,859.46, 11,789.19 and 2,663.94

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Solution

The fourth proportional to 7,859.46, 11,789.19 and 2,663.94 is: 3,995.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,859.46 : 11,789.19 = 2,663.94 : x
  2. Step 2: Convert to fraction form
    7,859.46/11,789.19 = 2,663.94/x
  3. Step 3: Cross multiply
    7,859.46x = 11,789.19 × 2,663.94
  4. Step 4: Simplify right side
    7,859.46x = 31,405,694.81
  5. Step 5: Solve for x
    x = 31,405,694.81/7,859.46
  6. Step 6: Final answer
    x = 3,995.91

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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.