Home / 5,379.81-7,424.52-3,021.96

Finding the Fourth Proportional to 5,379.81, 7,424.52 and 3,021.96

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Solution

The fourth proportional to 5,379.81, 7,424.52 and 3,021.96 is: 4,170.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,379.81 : 7,424.52 = 3,021.96 : x
  2. Step 2: Convert to fraction form
    5,379.81/7,424.52 = 3,021.96/x
  3. Step 3: Cross multiply
    5,379.81x = 7,424.52 × 3,021.96
  4. Step 4: Simplify right side
    5,379.81x = 22,436,565.34
  5. Step 5: Solve for x
    x = 22,436,565.34/5,379.81
  6. Step 6: Final answer
    x = 4,170.51

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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.