Home / 1,379.24-2,069.82-1,054.76

Finding the Fourth Proportional to 1,379.24, 2,069.82 and 1,054.76

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Solution

The fourth proportional to 1,379.24, 2,069.82 and 1,054.76 is: 1,582.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379.24 : 2,069.82 = 1,054.76 : x
  2. Step 2: Convert to fraction form
    1,379.24/2,069.82 = 1,054.76/x
  3. Step 3: Cross multiply
    1,379.24x = 2,069.82 × 1,054.76
  4. Step 4: Simplify right side
    1,379.24x = 2,183,163.34
  5. Step 5: Solve for x
    x = 2,183,163.34/1,379.24
  6. Step 6: Final answer
    x = 1,582.87

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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.