Home / 1,786.46-2,679.94-553.96

Finding the Fourth Proportional to 1,786.46, 2,679.94 and 553.96

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Solution

The fourth proportional to 1,786.46, 2,679.94 and 553.96 is: 831.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,786.46 : 2,679.94 = 553.96 : x
  2. Step 2: Convert to fraction form
    1,786.46/2,679.94 = 553.96/x
  3. Step 3: Cross multiply
    1,786.46x = 2,679.94 × 553.96
  4. Step 4: Simplify right side
    1,786.46x = 1,484,579.56
  5. Step 5: Solve for x
    x = 1,484,579.56/1,786.46
  6. Step 6: Final answer
    x = 831.02

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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.