Home / 1,786.73-2,463.91-1,087.67

Finding the Fourth Proportional to 1,786.73, 2,463.91 and 1,087.67

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Solution

The fourth proportional to 1,786.73, 2,463.91 and 1,087.67 is: 1,499.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,786.73 : 2,463.91 = 1,087.67 : x
  2. Step 2: Convert to fraction form
    1,786.73/2,463.91 = 1,087.67/x
  3. Step 3: Cross multiply
    1,786.73x = 2,463.91 × 1,087.67
  4. Step 4: Simplify right side
    1,786.73x = 2,679,920.99
  5. Step 5: Solve for x
    x = 2,679,920.99/1,786.73
  6. Step 6: Final answer
    x = 1,499.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.