Home / 3,379.27-5,064.05-1,428.79

Finding the Fourth Proportional to 3,379.27, 5,064.05 and 1,428.79

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Solution

The fourth proportional to 3,379.27, 5,064.05 and 1,428.79 is: 2,141.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,379.27 : 5,064.05 = 1,428.79 : x
  2. Step 2: Convert to fraction form
    3,379.27/5,064.05 = 1,428.79/x
  3. Step 3: Cross multiply
    3,379.27x = 5,064.05 × 1,428.79
  4. Step 4: Simplify right side
    3,379.27x = 7,235,456.86
  5. Step 5: Solve for x
    x = 7,235,456.86/3,379.27
  6. Step 6: Final answer
    x = 2,141.13

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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.